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---
license: mit
tags:
- mass-spectrometry
- ms2
- molecular-formula
- diffusion-model
- cheminformatics
library_name: msformulator
---
# MSFormulator 模型权重
本仓库托管 [msformulator](https://pypi.org/project/msformulator/)(基于扩散模型的 MS2 分子式预测方法 **MSFormulator**)的模型权重文件:
| 文件 | 说明 | 大小 |
|------|------|------|
| `msformulator_top1.pt` | top-1 预测权重 | ~674 MB |
| `msformulator_top10.pt` | top-10 预测权重 | ~825 MB |
## 使用方式
```bash
pip install msformulator
export MS2_WEIGHTS_URL="https://huggingface.co/junjiangliu/msformulator/resolve/main"
msformulator 439.326 "[]" "[M+H]+" "[M+H]+"
```
权重会在首次运行时自动下载到 `~/.cache/msformulator/weights`。
也可设置环境变量 `MS2_WEIGHTS_DIR` 指向本地已下载的权重目录,跳过下载。