Ethen xiangzhangauguest
xiangzhangauguest
/ rank_metrics.py
Created
August 8, 2016 11:32
— forked from bwhite/rank_metrics.py
Ranking Metrics
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| """Information Retrieval metrics | |
| Useful Resources: | |
| http://www.cs.utexas.edu/~mooney/ir-course/slides/Evaluation.ppt | |
| http://www.nii.ac.jp/TechReports/05-014E.pdf | |
| http://www.stanford.edu/class/cs276/handouts/EvaluationNew-handout-6-per.pdf | |
| http://hal.archives-ouvertes.fr/docs/00/72/67/60/PDF/07-busa-fekete.pdf | |
| Learning to Rank for Information Retrieval (Tie-Yan Liu) | |
| """ | |
| import numpy as np |
xiangzhangauguest
/ useful_pandas_snippets.py
Created
June 27, 2016 10:56
— forked from bsweger/useful_pandas_snippets.md
Useful Pandas Snippets
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| #List unique values in a DataFrame column | |
| pd.unique(df.column_name.ravel()) | |
| #Convert Series datatype to numeric, getting rid of any non-numeric values | |
| df['col'] = df['col'].astype(str).convert_objects(convert_numeric=True) | |
| #Grab DataFrame rows where column has certain values | |
| valuelist = ['value1', 'value2', 'value3'] | |
| df = df[df.column.isin(value_list)] |