| |
| """Two small exact examples. Does not write to the repository.""" |
| import sys |
| sys.dont_write_bytecode=True |
| from fractions import Fraction as F |
| from preemptive_ordering import optimal_one_split_order |
| from scalar_ordering import build_scalar_reduction,endpoint |
| from sentinel_ordering import balance_scalar_centers |
|
|
| result=optimal_one_split_order([-1,1],[F(1,2)]*2,target=0) |
| assert result['endpoint']==0 and result['objective']==0 |
| assert len(result['fragments'])<=3 |
| print('One interruption:') |
| print(' centers:',[-1,1]) |
| print(' fragments (zero-based label, retention):',[(i,str(a)) for i,a in result['fragments']]) |
| print(' endpoint:',result['endpoint'],'squared error:',result['objective']) |
| base=build_scalar_reduction([1,1]) |
| balanced=balance_scalar_centers(base['centers'],base['rho']) |
| order=[0,1,3,2]+list(balanced['sentinel_suffix']) |
| assert sum(balanced['centers'])==0 |
| assert endpoint(balanced['centers'],order,balanced['rho'])==0 |
| print('Balanced scalar construction:') |
| print(' requests:',len(balanced['centers']),'mean:',sum(balanced['centers'])/len(balanced['centers'])) |
| print(' zero-endpoint witness:',order) |
| print('Both exact examples passed.') |
|
|
