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27236275
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/27236275/what-does-valueerror-cannot-reindex-from-a-duplicate-axis-mean
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
27,236,275
What does `ValueError: cannot reindex from a duplicate axis` mean?
521
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true
true
[ "python", "pandas" ]
2014-12-01T20:00:51
2025-03-11T12:29:21
Akavall
false
CC BY-SA 3.0
27,242,735
1,078,084
87,012
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null
null
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null
null
null
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25351968
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/25351968/how-can-i-display-full-non-truncated-dataframe-information-in-html-when-conver
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
25,351,968
How can I display full (non-truncated) dataframe information in HTML when converting from Pandas dataframe to HTML?
517
813,651
13
true
true
[ "python", "html", "pandas" ]
2014-08-17T17:52:52
2025-03-14T03:48:13
Amy
false
CC BY-SA 4.0
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3,950,509
5,283
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null
null
null
null
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null
null
null
null
null
null
null
15705630
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/15705630/get-the-rows-which-have-the-max-value-in-groups-using-groupby
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
15,705,630
Get the row(s) which have the max value in groups using groupby
515
706,110
16
true
true
[ "python", "pandas", "dataframe", "group-by", "max" ]
2013-03-29T14:48:13
2024-04-21T15:34:21
jojo12
false
CC BY-SA 4.0
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2,216,109
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null
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22604564
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/22604564/create-pandas-dataframe-from-a-string
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
22,604,564
Create Pandas DataFrame from a string
510
492,135
7
true
true
[ "python", "string", "pandas", "csv", "csv-import" ]
2014-03-24T08:43:29
2023-07-01T14:48:46
Emil L
false
CC BY-SA 4.0
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355,499
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19913659
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/19913659/how-do-i-create-a-new-column-where-the-values-are-selected-based-on-an-existing
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
19,913,659
How do I create a new column where the values are selected based on an existing column?
510
872,457
15
true
true
[ "python", "pandas", "dataframe", "numpy" ]
2013-11-11T18:52:06
2024-10-24T05:33:22
user7289
false
CC BY-SA 4.0
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24988448
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/24988448/how-to-draw-vertical-lines-on-a-given-plot
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
24,988,448
How to draw vertical lines on a given plot
504
963,753
6
true
true
[ "python", "pandas", "matplotlib", "seaborn" ]
2014-07-28T04:29:41
2023-04-22T04:18:38
Francis
false
CC BY-SA 4.0
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3,882,995
6,776
null
null
null
null
null
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null
null
null
null
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null
26763344
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/26763344/convert-pandas-column-to-datetime
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
26,763,344
Convert Pandas Column to DateTime
503
1,285,847
7
true
true
[ "python", "pandas", "dataframe", "datetime", "type-conversion" ]
2014-11-05T17:24:34
2024-07-10T00:30:14
Chris
false
CC BY-SA 4.0
26,763,793
3,971,910
13,880
null
null
null
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null
null
null
null
null
null
null
26414913
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/26414913/normalize-columns-of-a-dataframe
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
26,414,913
Normalize columns of a dataframe
492
1,135,078
25
true
true
[ "python", "pandas", "dataframe", "normalize" ]
2014-10-16T22:24:42
2024-05-14T09:34:40
ahajib
false
CC BY-SA 4.0
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2,827,771
13,678
null
null
null
null
null
null
null
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null
null
null
null
null
null
17134716
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/17134716/convert-dataframe-column-type-from-string-to-datetime
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
17,134,716
Convert DataFrame column type from string to datetime
491
808,077
7
true
true
[ "python", "pandas", "dataframe", "datetime", "type-conversion" ]
2013-06-16T15:14:58
2024-07-10T00:31:46
perigee
false
CC BY-SA 4.0
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857,130
9,988
null
null
null
null
null
null
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null
null
null
null
null
null
null
13035764
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/13035764/remove-pandas-rows-with-duplicate-indices
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
13,035,764
Remove pandas rows with duplicate indices
491
532,741
8
true
true
[ "python", "pandas", "dataframe", "duplicates" ]
2012-10-23T17:11:04
2025-07-23T17:41:19
Paul H
false
CC BY-SA 4.0
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1,552,748
68,855
null
null
null
null
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null
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null
null
null
null
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null
17098654
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/17098654/how-to-reversibly-store-and-load-a-pandas-dataframe-to-from-disk
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
17,098,654
How to reversibly store and load a Pandas dataframe to/from disk
490
560,347
14
true
true
[ "python", "pandas", "dataframe" ]
2013-06-13T23:05:36
2024-04-05T15:33:46
jeffstern
false
CC BY-SA 4.0
17,098,736
972,381
5,096
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null
null
null
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null
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null
null
null
null
null
null
13703720
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/13703720/converting-between-datetime-timestamp-and-datetime64
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
13,703,720
Converting between datetime, Timestamp and datetime64
484
920,617
14
true
true
[ "python", "datetime", "numpy", "pandas" ]
2012-12-04T13:08:29
2021-12-13T11:31:04
Andy Hayden
false
CC BY-SA 4.0
13,704,307
1,240,268
378,781
null
null
null
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null
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17530542
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/17530542/how-to-add-pandas-data-to-an-existing-csv-file
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
17,530,542
How to add pandas data to an existing csv file?
480
587,644
7
true
true
[ "python", "pandas", "csv", "dataframe" ]
2013-07-08T15:33:46
2022-01-20T14:28:53
Ayoub Ennassiri
false
CC BY-SA 4.0
17,975,690
2,355,050
4,926
null
null
null
null
null
null
null
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null
null
null
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26521266
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/26521266/using-pandas-to-pd-read-excel-for-multiple-but-not-all-worksheets-of-the-sam
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
26,521,266
Using Pandas to pd.read_excel() for multiple (but not all) worksheets of the same workbook without reloading the whole file
455
1,120,236
14
true
true
[ "python", "excel", "pandas", "dataframe", "xlsx" ]
2014-10-23T04:21:45
2024-11-28T13:55:45
HaPsantran
false
CC BY-SA 4.0
26,521,726
3,127,764
6,327
null
null
null
null
null
null
null
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null
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null
null
null
null
null
null
null
26716616
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/26716616/convert-a-pandas-dataframe-to-a-dictionary
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
26,716,616
Convert a Pandas DataFrame to a dictionary
453
908,118
12
true
true
[ "python", "pandas", "dictionary", "dataframe" ]
2014-11-03T14:47:53
2023-03-22T20:19:20
Prince Bhatti
false
CC BY-SA 4.0
26,716,774
3,676,196
5,091
null
null
null
null
null
null
null
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null
null
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null
null
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null
2051744
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/2051744/how-to-invert-the-x-or-y-axis
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
2,051,744
How to invert the x or y axis
451
708,766
11
true
true
[ "python", "pandas", "matplotlib", "seaborn" ]
2010-01-12T19:31:47
2024-04-09T13:12:59
DarkAnt
false
CC BY-SA 4.0
8,280,500
139,423
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null
null
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11869910
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/11869910/pandas-filter-rows-of-dataframe-with-operator-chaining
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
11,869,910
pandas: filter rows of DataFrame with operator chaining
445
874,392
15
true
true
[ "python", "pandas", "dataframe" ]
2012-08-08T17:25:37
2023-12-12T21:42:01
duckworthd
true
null
11,872,393
128,580
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null
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null
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28901683
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/28901683/pandas-get-rows-which-are-not-in-other-dataframe
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
28,901,683
pandas get rows which are NOT in other dataframe
444
550,725
18
true
true
[ "python", "pandas", "dataframe" ]
2015-03-06T15:10:28
2024-08-08T07:47:26
think nice things
false
CC BY-SA 4.0
28,902,170
3,965,770
4,715
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20763012
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/20763012/creating-a-pandas-dataframe-from-a-numpy-array-how-do-i-specify-the-index-colum
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
20,763,012
Creating a Pandas DataFrame from a Numpy array: How do I specify the index column and column headers?
444
1,400,814
10
true
true
[ "python", "pandas", "dataframe", "list", "numpy" ]
2013-12-24T15:09:07
2023-08-19T10:18:27
user3132783
false
CC BY-SA 4.0
20,763,459
3,132,783
5,495
null
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18022845
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/18022845/how-to-get-set-a-pandas-index-column-title-or-name
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
18,022,845
How to get/set a pandas index column title or name?
440
1,137,080
10
true
true
[ "python", "pandas", "dataframe", "indexing", "rename" ]
2013-08-02T17:30:53
2025-04-20T23:52:24
Radical Edward
false
CC BY-SA 4.0
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1,754,273
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29815129
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/29815129/pandas-dataframe-to-list-of-dictionaries
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
29,815,129
Pandas DataFrame to List of Dictionaries
439
358,075
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true
true
[ "python", "pandas", "dataframe" ]
2015-04-23T06:12:18
2025-06-08T12:01:21
Mohamad Ibrahim
false
CC BY-SA 4.0
29,816,143
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22149584
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/22149584/what-does-axis-in-pandas-mean
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
22,149,584
What does axis in pandas mean?
435
544,296
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true
true
[ "python", "pandas", "dataframe" ]
2014-03-03T14:41:04
2025-05-24T14:00:10
jerry_sjtu
false
CC BY-SA 4.0
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14529838
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/14529838/apply-multiple-functions-to-multiple-groupby-columns
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
14,529,838
Apply multiple functions to multiple groupby columns
433
547,146
10
true
true
[ "python", "group-by", "aggregate-functions", "pandas" ]
2013-01-25T20:26:45
2024-05-23T09:40:45
beardc
false
CC BY-SA 4.0
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386,279
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16176996
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/16176996/keep-only-date-part-when-using-pandas-to-datetime
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
16,176,996
Keep only date part when using pandas.to_datetime
430
924,021
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true
false
[ "python", "pandas", "csv", "datetime", "series" ]
2013-04-23T18:50:36
2023-03-10T17:02:08
user1642513
false
CC BY-SA 4.0
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null
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18062135
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/18062135/combining-two-series-into-a-dataframe-in-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
18,062,135
Combining two Series into a DataFrame in pandas
427
636,685
10
true
true
[ "python", "pandas", "series", "dataframe" ]
2013-08-05T15:37:39
2025-08-26T14:31:44
user7289
false
CC BY-SA 3.0
18,062,521
213,216
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null
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18674064
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/18674064/how-do-i-insert-a-column-at-a-specific-column-index-in-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
18,674,064
how do I insert a column at a specific column index in pandas?
426
651,098
6
true
true
[ "python", "indexing", "pandas" ]
2013-09-07T13:59:01
2024-01-07T22:36:34
HappyPy
false
CC BY-SA 3.0
18,674,915
2,635,863
10,833
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
13021654
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/13021654/get-column-index-from-column-name-in-python-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
13,021,654
Get column index from column name in python pandas
423
750,614
9
true
true
[ "python", "pandas", "dataframe", "indexing" ]
2012-10-22T23:48:58
2023-01-11T12:36:29
ak3nat0n
false
CC BY-SA 3.0
13,021,797
55,299
6,388
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
15411158
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/15411158/pandas-countdistinct-equivalent
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
15,411,158
Pandas 'count(distinct)' equivalent
421
774,090
12
true
true
[ "python", "pandas", "group-by", "count", "duplicates" ]
2013-03-14T13:50:03
2025-05-16T17:16:06
Adriano Almeida
false
CC BY-SA 4.0
15,411,596
1,879,940
5,386
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
26837998
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/26837998/pandas-replace-nan-with-blank-empty-string
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
26,837,998
Pandas Replace NaN with blank/empty string
420
731,276
8
true
true
[ "python", "pandas", "dataframe", "nan" ]
2014-11-10T06:29:26
2023-05-10T08:28:06
user1452759
false
CC BY-SA 4.0
26,838,140
1,452,759
9,548
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
22233488
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/22233488/pandas-drop-a-level-from-a-multi-level-column-index
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
22,233,488
Pandas: drop a level from a multi-level column index?
419
514,538
8
true
false
[ "python", "pandas" ]
2014-03-06T18:58:06
2024-10-29T14:59:43
David Wolever
false
CC BY-SA 3.0
null
71,522
156,198
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
25146121
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/25146121/extracting-just-month-and-year-separately-from-pandas-datetime-column
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
25,146,121
Extracting just Month and Year separately from Pandas Datetime column
416
1,326,605
11
true
true
[ "python", "pandas", "datetime" ]
2014-08-05T18:44:30
2023-10-07T06:43:52
monkeybiz7
false
CC BY-SA 4.0
25,149,272
3,494,704
5,188
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
23199796
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/23199796/detect-and-exclude-outliers-in-a-pandas-dataframe
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
23,199,796
Detect and exclude outliers in a pandas DataFrame
416
692,206
18
true
false
[ "python", "pandas", "filtering", "dataframe", "outliers" ]
2014-04-21T14:51:37
2023-10-16T01:02:28
AMM
false
CC BY-SA 4.0
null
11,212
18,220
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
29517072
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/29517072/add-column-to-dataframe-with-constant-value
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
29,517,072
Add column to dataframe with constant value
413
861,609
10
true
true
[ "python", "pandas", "dataframe" ]
2015-04-08T14:09:22
2024-11-22T17:59:07
darkpool
false
CC BY-SA 4.0
29,517,089
4,169,229
14,751
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
38231591
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/38231591/split-explode-a-column-of-dictionaries-into-separate-columns-with-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
38,231,591
Split / Explode a column of dictionaries into separate columns with pandas
410
388,850
14
true
false
[ "python", "json", "pandas", "dictionary", "json-normalize" ]
2016-07-06T18:47:56
2025-05-19T19:18:03
llaffin
false
CC BY-SA 4.0
null
6,157,698
4,141
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
7837722
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/7837722/what-is-the-most-efficient-way-to-loop-through-dataframes-with-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
7,837,722
What is the most efficient way to loop through dataframes with pandas?
409
686,389
13
true
true
[ "python", "pandas", "performance", "dataframe", "for-loop" ]
2011-10-20T14:46:14
2024-09-09T17:21:11
Muppet
true
null
11,617,194
1,005,409
6,045
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
29370057
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/29370057/select-dataframe-rows-between-two-dates
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
29,370,057
Select DataFrame rows between two dates
408
982,368
14
true
true
[ "python", "pandas", "dataframe", "date", "datetime" ]
2015-03-31T13:38:06
2025-08-09T09:51:29
darkpool
false
CC BY-SA 4.0
29,370,182
4,169,229
14,751
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
14745022
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/14745022/how-to-split-a-dataframe-string-column-into-two-columns
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
14,745,022
How to split a dataframe string column into two columns?
406
962,418
12
true
true
[ "python", "dataframe", "pandas" ]
2013-02-07T06:30:11
2023-09-28T00:58:51
a k
false
CC BY-SA 4.0
14,745,484
2,049,102
4,073
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
49188960
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/49188960/how-to-show-all-columns-names-on-a-large-pandas-dataframe
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
49,188,960
How to show all columns' names on a large pandas dataframe?
405
1,127,780
23
true
true
[ "python", "pandas", "dataframe" ]
2018-03-09T07:49:04
2026-04-13T16:56:48
Nabih Bawazir
false
CC BY-SA 4.0
49,189,503
7,585,973
7,465
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
29287224
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/29287224/pandas-read-in-table-without-headers
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
29,287,224
Pandas read in table without headers
403
755,387
5
true
true
[ "python", "pandas", "dataframe", "csv", "file-io" ]
2015-03-26T19:27:49
2025-04-11T06:06:58
user308827
false
CC BY-SA 4.0
51,612,800
308,827
22,531
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
17477979
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/17477979/dropping-infinite-values-from-dataframes-in-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
17,477,979
Dropping infinite values from dataframes in pandas?
402
590,655
10
true
true
[ "python", "pandas", "numpy" ]
2013-07-04T20:55:20
2024-06-05T17:03:55
user248237
false
CC BY-SA 4.0
17,478,495
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
39922986
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/39922986/how-do-i-use-pandas-group-by-to-get-the-sum
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
39,922,986
How do I use Pandas group-by to get the sum?
401
972,523
11
true
true
[ "python", "pandas", "dataframe", "group-by", "aggregate" ]
2016-10-07T17:36:25
2024-08-29T15:29:05
Trying_hard
false
CC BY-SA 4.0
39,923,012
1,027,427
9,641
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
21291259
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/21291259/convert-floats-to-ints-in-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
21,291,259
Convert floats to ints in Pandas?
401
1,100,289
11
true
true
[ "python", "pandas", "dataframe", "floating-point", "integer" ]
2014-01-22T18:42:15
2025-11-03T16:51:02
MJP
false
CC BY-SA 4.0
21,291,622
2,961,929
5,697
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
21287624
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/21287624/convert-pandas-column-containing-nans-to-dtype-int
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
21,287,624
Convert Pandas column containing NaNs to dtype `int`
401
513,684
31
true
true
[ "python", "pandas", "dataframe", "nan", "dtype" ]
2014-01-22T15:51:28
2024-03-07T17:05:32
Zhubarb
false
CC BY-SA 4.0
21,290,084
988,125
12,016
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
35491274
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/35491274/split-a-pandas-column-of-lists-into-multiple-columns
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
35,491,274
Split a Pandas column of lists into multiple columns
399
512,801
13
true
true
[ "python", "pandas", "list", "dataframe", "split" ]
2016-02-18T20:01:07
2023-08-04T08:58:55
bgame2498
false
CC BY-SA 4.0
35,491,399
2,938,093
4,927
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
22005911
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/22005911/convert-columns-to-string-in-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
22,005,911
Convert columns to string in Pandas
396
1,428,352
10
true
true
[ "python", "pandas", "string", "dataframe", "type-conversion" ]
2014-02-25T06:03:30
2023-08-04T00:15:30
sontek
false
CC BY-SA 4.0
22,006,514
17,176
12,591
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
16236684
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/16236684/apply-pandas-function-to-column-to-create-multiple-new-columns
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
16,236,684
Apply pandas function to column to create multiple new columns?
393
389,714
17
true
true
[ "python", "pandas", "merge", "multiple-columns", "return-type" ]
2013-04-26T12:38:33
2024-09-05T08:19:43
smci
false
CC BY-SA 4.0
16,245,109
202,229
34,251
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
29432629
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/29432629/plot-correlation-matrix-using-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
29,432,629
Plot correlation matrix using pandas
391
1,051,036
20
true
true
[ "python", "pandas", "matplotlib", "data-visualization", "information-visualization" ]
2015-04-03T12:57:22
2025-06-25T10:51:46
Gaurav Singh
false
CC BY-SA 4.0
29,432,741
1,983,512
13,577
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
18603270
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/18603270/progress-indicator-during-pandas-operations
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
18,603,270
Progress indicator during pandas operations
389
287,353
10
true
true
[ "python", "pandas", "ipython" ]
2013-09-03T23:55:02
2023-08-29T21:22:45
cwharland
false
CC BY-SA 4.0
34,365,537
1,968,405
6,823
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
34682828
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/34682828/extracting-specific-selected-columns-to-new-dataframe-as-a-copy
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
34,682,828
Extracting specific selected columns to new DataFrame as a copy
382
1,169,935
10
true
true
[ "python", "pandas", "dataframe", "chained-assignment" ]
2016-01-08T17:34:45
2026-04-08T15:53:14
SpeedCoder5
false
CC BY-SA 4.0
34,683,105
1,134,881
9,248
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
41815079
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/41815079/pandas-merge-join-two-data-frames-on-multiple-columns
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
41,815,079
pandas: merge (join) two data frames on multiple columns
381
1,139,454
6
true
true
[ "python", "python-3.x", "pandas", "join", "pandas-merge" ]
2017-01-23T20:32:09
2024-07-27T16:03:50
Edamame
false
CC BY-SA 4.0
41,815,118
3,993,270
25,648
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
33382619
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/33382619/plot-a-horizontal-line-on-a-given-plot
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
33,382,619
Plot a horizontal line on a given plot
381
861,226
7
true
true
[ "python", "pandas", "matplotlib", "seaborn" ]
2015-10-28T03:53:32
2022-07-12T13:29:04
Ibe
false
CC BY-SA 4.0
33,382,692
1,801,769
6,195
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
16424493
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/16424493/pandas-setting-no-of-max-rows
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
16,424,493
Pandas: Setting no. of max rows
381
787,289
10
true
true
[ "python", "formatting", "pandas", "jupyter-notebook" ]
2013-05-07T16:52:02
2023-07-12T19:15:01
Andy
false
CC BY-SA 3.0
16,433,953
2,331,506
10,181
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
15998188
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/15998188/how-can-i-obtain-the-element-wise-logical-not-of-a-pandas-series
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
15,998,188
How can I obtain the element-wise logical NOT of a pandas Series?
380
280,993
7
true
true
[ "python", "pandas", "operators", "boolean-logic" ]
2013-04-14T10:44:28
2023-10-10T20:11:50
Louis Thibault
false
CC BY-SA 4.0
15,998,993
1,156,707
21,640
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
12680754
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/12680754/split-explode-pandas-dataframe-string-entry-to-separate-rows
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
12,680,754
Split (explode) pandas dataframe string entry to separate rows
376
449,240
27
true
true
[ "python", "pandas", "numpy", "dataframe" ]
2012-10-01T20:42:16
2025-09-26T16:57:13
Vincent
false
CC BY-SA 4.0
12,681,217
342,331
18,468
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
26873127
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/26873127/show-dataframe-as-table-in-ipython-notebook
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
26,873,127
Show DataFrame as table in iPython Notebook
376
513,401
10
true
true
[ "python", "pandas", "jupyter-notebook", "printing", "display" ]
2014-11-11T19:40:53
2025-08-25T19:06:23
Chris
false
CC BY-SA 4.0
29,665,452
3,971,910
13,880
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
23330654
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/23330654/update-a-dataframe-in-pandas-while-iterating-row-by-row
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
23,330,654
Update a dataframe in pandas while iterating row by row
376
574,408
10
true
false
[ "python", "pandas", "updates", "dataframe" ]
2014-04-28T00:19:49
2025-09-15T08:52:27
AMM
false
CC BY-SA 3.0
null
11,212
18,220
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
15315452
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/15315452/selecting-with-complex-criteria-from-pandas-dataframe
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
15,315,452
Selecting with complex criteria from pandas.DataFrame
374
977,145
5
true
true
[ "python", "pandas", "select", "filter", "conditional-statements" ]
2013-03-09T20:17:49
2026-06-01T17:12:08
Gill Bates
false
CC BY-SA 4.0
15,315,507
1,818,608
15,645
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
27673231
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/27673231/why-should-i-make-a-copy-of-a-data-frame-in-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
27,673,231
why should I make a copy of a data frame in pandas
371
381,765
8
true
true
[ "python", "pandas", "copy", "chained-assignment" ]
2014-12-28T02:22:27
2023-12-14T22:47:47
Elizabeth Susan Joseph
false
CC BY-SA 4.0
27,680,109
4,273,266
6,535
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
10202570
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/10202570/find-row-where-values-for-column-is-maximal-in-a-pandas-dataframe
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
10,202,570
Find row where values for column is maximal in a pandas DataFrame
370
531,870
15
true
true
[ "python", "pandas", "dataframe", "row", "argmax" ]
2012-04-18T03:59:55
2024-08-12T09:16:03
Miki Tebeka
false
CC BY-SA 4.0
10,202,789
7,650
14,090
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
22898824
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/22898824/filtering-pandas-dataframes-on-dates
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
22,898,824
Filtering Pandas DataFrames on dates
367
1,007,805
18
true
false
[ "python", "datetime", "pandas", "filtering", "dataframe" ]
2014-04-06T19:24:42
2024-11-17T01:13:01
AMM
false
CC BY-SA 4.0
null
11,212
18,220
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
14661701
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/14661701/how-to-drop-a-list-of-rows-from-pandas-dataframe
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
14,661,701
How to drop a list of rows from Pandas dataframe?
367
816,175
15
true
true
[ "python", "pandas" ]
2013-02-02T12:03:46
2024-10-28T06:59:05
bigbug
false
CC BY-SA 3.0
14,661,768
1,072,888
60,014
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
44513738
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/44513738/pandas-create-empty-dataframe-with-only-column-names
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
44,513,738
Pandas create empty DataFrame with only column names
366
905,286
5
true
true
[ "python", "pandas", "dataframe" ]
2017-06-13T06:22:57
2023-04-12T22:46:52
E. Muuli
false
CC BY-SA 4.0
44,514,187
1,772,193
4,410
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
38309729
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/38309729/count-unique-values-per-groups-with-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
38,309,729
Count unique values per groups with Pandas
353
916,886
4
true
true
[ "python", "pandas", "group-by", "unique" ]
2016-07-11T14:38:25
2023-10-31T18:43:35
Arseniy Krupenin
true
null
38,309,823
6,327,741
3,900
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
40468069
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/40468069/merge-two-dataframes-by-index
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
40,468,069
Merge two dataframes by index
352
686,344
7
true
true
[ "python", "pandas", "dataframe", "merge", "concatenation" ]
2016-11-07T14:51:50
2025-01-21T09:56:08
brucezepplin
true
null
40,468,090
1,268,941
9,872
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
24644656
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/24644656/how-to-print-pandas-dataframe-without-index
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
24,644,656
How to print pandas DataFrame without index
349
621,077
12
true
true
[ "python", "datetime", "pandas", "dataframe" ]
2014-07-09T02:50:29
2025-03-02T00:16:22
lserlohn
false
CC BY-SA 4.0
32,662,331
3,804,098
6,266
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
53927460
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/53927460/select-rows-in-pandas-multiindex-dataframe
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
53,927,460
Select rows in pandas MultiIndex DataFrame
347
154,197
7
true
true
[ "python", "pandas", "dataframe", "slice", "multi-index" ]
2018-12-26T04:36:11
2023-05-22T17:17:12
coldspeed95
false
CC BY-SA 4.0
53,927,461
4,909,087
407,555
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
21319929
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/21319929/how-to-determine-whether-a-pandas-column-contains-a-particular-value
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
21,319,929
How to determine whether a Pandas Column contains a particular value
347
940,583
10
true
true
[ "python", "pandas" ]
2014-01-23T21:41:11
2022-09-16T06:15:45
Michael
false
CC BY-SA 3.0
21,320,011
2,327,821
14,124
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
22676081
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/22676081/what-is-the-difference-between-join-and-merge-in-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
22,676,081
What is the difference between join and merge in Pandas?
344
254,036
7
true
true
[ "python", "pandas", "dataframe", "join" ]
2014-03-27T00:42:47
2024-05-21T13:44:08
munk
false
CC BY-SA 4.0
22,676,213
633,094
13,213
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
12497402
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/12497402/remove-duplicates-by-columns-a-keeping-the-row-with-the-highest-value-in-column
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
12,497,402
Remove duplicates by columns A, keeping the row with the highest value in column B
341
518,101
15
true
true
[ "python", "duplicates", "pandas" ]
2012-09-19T15:01:32
2023-08-14T14:05:08
Abe
false
CC BY-SA 4.0
13,059,751
660,664
24,218
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
14247586
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/14247586/how-to-select-rows-with-one-or-more-nulls-from-a-pandas-dataframe-without-listin
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
14,247,586
How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly?
340
526,857
6
true
false
[ "python", "pandas", "null", "nan" ]
2013-01-09T22:22:05
2021-06-06T07:17:08
Lev Selector
false
CC BY-SA 4.0
null
1,442,475
3,841
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
27842613
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/27842613/pandas-groupby-then-sort-within-groups
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
27,842,613
pandas groupby, then sort within groups
335
779,016
9
true
true
[ "python", "sorting", "pandas", "group-by" ]
2015-01-08T14:37:19
2022-06-16T00:35:43
JoeDanger
false
CC BY-SA 4.0
27,844,045
3,198,411
3,605
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
20612645
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/20612645/how-to-find-the-installed-pandas-version
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
20,612,645
How to find the installed pandas version
335
564,507
6
true
true
[ "python", "pandas", "version" ]
2013-12-16T13:55:12
2024-11-15T20:25:49
idoda
false
CC BY-SA 4.0
20,612,691
1,945,306
6,458
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
14984119
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/14984119/python-pandas-remove-duplicate-columns
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
14,984,119
python pandas remove duplicate columns
335
544,977
18
true
true
[ "python", "pandas" ]
2013-02-20T15:49:17
2025-06-09T16:50:39
Onlyjus
false
CC BY-SA 3.0
40,435,354
979,203
6,239
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
75956209
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/75956209/error-dataframe-object-has-no-attribute-append
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
75,956,209
Error "'DataFrame' object has no attribute 'append'"
333
755,442
4
true
false
[ "python", "pandas", "dataframe", "concatenation", "attributeerror" ]
2023-04-07T07:05:59
2025-04-06T20:14:13
Maksimjeet Chowdhary
false
CC BY-SA 4.0
null
13,595,011
3,511
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
16597265
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/16597265/appending-to-an-empty-dataframe-in-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
16,597,265
Appending to an empty DataFrame in Pandas?
332
658,274
6
true
true
[ "python", "pandas" ]
2013-05-16T20:52:29
2023-04-15T06:43:14
ericmjl
false
CC BY-SA 4.0
73,641,046
1,274,908
14,964
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
10665889
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/10665889/how-to-take-column-slices-of-dataframe-in-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
10,665,889
How to take column-slices of dataframe in pandas
332
714,959
11
true
true
[ "python", "pandas", "numpy", "dataframe", "slice" ]
2012-05-19T14:11:42
2021-10-25T22:32:58
cpa
false
CC BY-SA 4.0
44,736,467
1,350,862
3,904
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
14657241
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/14657241/how-do-i-get-a-list-of-all-the-duplicate-items-using-pandas-in-python
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
14,657,241
How do I get a list of all the duplicate items using pandas in python?
330
724,585
13
true
true
[ "python", "pandas", "duplicates" ]
2013-02-02T00:22:08
2023-01-26T22:35:34
BigHandsome
false
CC BY-SA 4.0
14,657,511
1,467,553
5,433
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
32072076
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/32072076/find-the-unique-values-in-a-column-and-then-sort-them
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
32,072,076
Find the unique values in a column and then sort them
329
660,331
9
true
true
[ "python", "pandas", "sorting", "dataframe", "unique" ]
2015-08-18T12:10:49
2023-10-15T15:14:25
MAS
false
CC BY-SA 4.0
32,072,252
4,127,806
5,121
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
25962114
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/25962114/how-do-i-read-a-large-csv-file-with-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
25,962,114
How do I read a large csv file with pandas?
327
585,924
16
true
false
[ "python", "pandas", "csv", "memory", "chunks" ]
2014-09-21T17:46:43
2023-08-13T10:10:58
Rajkumar Kumawat
false
CC BY-SA 4.0
null
4,064,040
3,787
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
24458645
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/24458645/label-encoding-across-multiple-columns-in-scikit-learn
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
24,458,645
Label encoding across multiple columns in scikit-learn
326
403,746
25
true
false
[ "python", "pandas", "scikit-learn" ]
2014-06-27T18:29:40
2022-09-27T16:18:35
Bryan
false
CC BY-SA 4.0
null
1,884,063
6,199
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
15777951
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/15777951/how-to-suppress-pandas-future-warning
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
15,777,951
How to suppress Pandas Future warning?
326
473,835
7
true
true
[ "python", "pandas", "warnings", "suppress-warnings", "future-warning" ]
2013-04-03T02:37:48
2025-03-05T14:52:37
bigbug
false
CC BY-SA 4.0
15,778,297
1,072,888
60,014
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
28218698
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/28218698/how-to-iterate-over-columns-of-a-pandas-dataframe
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
28,218,698
How to iterate over columns of a pandas dataframe
325
957,186
12
true
true
[ "python", "pandas" ]
2015-01-29T15:42:25
2025-01-08T15:58:36
itzy
false
CC BY-SA 4.0
32,558,621
368,311
11,875
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
23668427
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/23668427/pandas-three-way-joining-multiple-dataframes-on-columns
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
23,668,427
pandas three-way joining multiple dataframes on columns
323
601,519
12
true
true
[ "python", "pandas", "join", "merge" ]
2014-05-15T02:51:40
2022-12-08T11:21:28
lollercoaster
false
CC BY-SA 4.0
30,512,931
712,997
16,623
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
22551403
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/22551403/python-pandas-filtering-out-nan-from-a-data-selection-of-a-column-of-strings
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
22,551,403
Python pandas Filtering out nan from a data selection of a column of strings
323
768,508
7
true
true
[ "python", "pandas", "dataframe" ]
2014-03-21T06:04:19
2026-01-27T21:37:44
ccsv
false
CC BY-SA 4.0
22,553,757
3,159,981
8,745
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
17383094
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/17383094/how-can-i-map-true-false-to-1-0-in-a-pandas-dataframe
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
17,383,094
How can I map True/False to 1/0 in a Pandas DataFrame?
323
456,169
14
true
true
[ "python", "pandas", "dataframe", "numpy", "boolean" ]
2013-06-29T17:53:19
2024-07-05T20:49:10
Simon Righley
false
CC BY-SA 4.0
27,362,540
2,107,632
5,018
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
36519086
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/36519086/how-to-get-rid-of-unnamed-0-column-in-a-pandas-dataframe-read-in-from-csv-fil
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
36,519,086
How to get rid of "Unnamed: 0" column in a pandas DataFrame read in from CSV file?
322
515,866
13
true
true
[ "python", "pandas", "csv", "dataframe" ]
2016-04-09T15:47:43
2024-12-14T17:48:48
Collective Action
false
CC BY-SA 4.0
36,519,122
5,211,377
8,067
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
17977540
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/17977540/pandas-looking-up-the-list-of-sheets-in-an-excel-file
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
17,977,540
Pandas: Looking up the list of sheets in an excel file
320
452,134
13
true
true
[ "python", "excel", "pandas", "openpyxl", "xlrd" ]
2013-07-31T17:57:19
2024-06-05T06:04:28
Amelio Vazquez-Reina
false
CC BY-SA 4.0
17,977,609
283,296
97,494
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
19758364
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/19758364/rename-specific-columns-in-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
19,758,364
Rename specific column(s) in pandas
316
558,162
8
true
true
[ "python", "pandas", "dataframe", "rename" ]
2013-11-03T21:28:48
2024-05-29T14:53:34
natsuki_2002
false
CC BY-SA 4.0
19,758,398
2,428,549
25,649
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
23377108
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/23377108/pandas-percentage-of-total-with-groupby
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
23,377,108
Pandas percentage of total with groupby
314
571,256
17
true
true
[ "python", "pandas", "group-by" ]
2014-04-29T23:30:40
2025-07-19T07:18:34
erikcw
false
CC BY-SA 4.0
23,377,232
126,617
11,085
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
17679089
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/17679089/pandas-dataframe-groupby-two-columns-and-get-counts
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
17,679,089
Pandas DataFrame Groupby two columns and get counts
314
1,229,128
8
true
true
[ "python", "pandas", "dataframe", "group-by", "pivot-table" ]
2013-07-16T14:19:44
2023-11-07T18:06:15
Nilani Algiriyage
false
CC BY-SA 4.0
17,679,980
461,436
36,136
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
39050539
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/39050539/how-to-add-multiple-columns-to-pandas-dataframe-in-one-assignment
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
39,050,539
How to add multiple columns to pandas dataframe in one assignment
313
532,350
14
true
true
[ "python", "pandas", "dataframe" ]
2016-08-20T04:40:49
2025-06-18T16:16:42
runningbirds
false
CC BY-SA 4.0
39,050,916
3,788,557
6,705
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
21415661
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/21415661/logical-operators-for-boolean-indexing-in-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
21,415,661
Logical operators for Boolean indexing in Pandas
313
554,378
4
true
true
[ "python", "pandas", "dataframe", "boolean", "filtering" ]
2014-01-28T20:04:04
2023-08-23T23:04:48
user2988577
false
CC BY-SA 4.0
21,415,990
2,988,577
4,227
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
19851005
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/19851005/rename-pandas-dataframe-index
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
19,851,005
Rename Pandas DataFrame Index
312
769,140
9
true
true
[ "python", "pandas", "dataframe", "rename" ]
2013-11-08T03:19:20
2022-02-02T10:18:27
Mattijn
false
CC BY-SA 4.0
19,851,521
2,459,096
14,150
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
18689823
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/18689823/pandas-dataframe-replace-nan-values-with-average-of-columns
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
18,689,823
pandas DataFrame: replace nan values with average of columns
311
711,517
12
true
true
[ "python", "pandas", "nan" ]
2013-09-08T23:54:05
2021-07-07T09:41:24
piokuc
false
CC BY-SA 3.0
18,691,949
300,886
26,286
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
17241004
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/17241004/how-do-i-convert-a-pandas-series-or-index-to-a-numpy-array
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
17,241,004
How do I convert a Pandas series or index to a NumPy array?
308
599,129
8
true
true
[ "python", "pandas" ]
2013-06-21T17:25:25
2022-09-02T23:34:38
ericmjl
true
null
17,242,374
1,274,908
14,964
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
30522724
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/30522724/take-multiple-lists-into-dataframe
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
30,522,724
Take multiple lists into dataframe
307
664,426
9
true
true
[ "python", "numpy", "pandas" ]
2015-05-29T06:37:49
2022-11-09T17:45:06
jfalkson
false
CC BY-SA 4.0
30,522,778
3,105,909
3,779
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
18429491
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/18429491/pandas-groupby-columns-with-nan-missing-values
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
18,429,491
pandas GroupBy columns with NaN (missing) values
307
437,861
7
true
false
[ "python", "pandas", "group-by", "nan" ]
2013-08-25T13:28:41
2024-06-05T06:07:01
Gyula Sámuel Karli
false
CC BY-SA 4.0
null
2,715,498
3,382
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
32244753
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/32244753/how-to-save-a-seaborn-plot-into-a-file
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
32,244,753
How to save a Seaborn plot into a file
306
550,573
12
true
false
[ "python", "pandas", "file", "output", "seaborn" ]
2015-08-27T08:51:07
2025-04-14T03:42:32
neversaint
false
CC BY-SA 4.0
null
67,405
64,716
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
27975069
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/27975069/how-to-filter-rows-containing-a-string-pattern-from-a-pandas-dataframe
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
27,975,069
How to filter rows containing a string pattern from a Pandas dataframe
305
768,524
4
true
true
[ "python", "pandas", "dataframe" ]
2015-01-15T23:44:22
2019-04-21T03:23:12
John Knight
true
null
27,975,230
4,383,051
3,383
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
16396903
question
stackoverflow
2026-08-03T01:00:26
null
null
null
null
null
https://stackoverflow.com/questions/16396903/delete-the-first-three-rows-of-a-dataframe-in-pandas
aBWjJ5b5dWttIAlqe
C0nSNxLmGKff3fOwc
16,396,903
Delete the first three rows of a dataframe in pandas
305
547,791
10
true
true
[ "python", "pandas" ]
2013-05-06T10:35:58
2024-02-22T10:23:30
Nilani Algiriyage
false
CC BY-SA 4.0
16,398,361
461,436
36,136
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null
null