Top Questions

1. What is a good heuristic to detect if a column in a pandas.DataFrame is categorical?
   29 votes

   7 answers
2. Multiple pipelines that merge within a sklearn Pipeline?
   14 votes

   1 answers
3. PRAW: How to get a reddit comment object with just the comment ID?
   6 votes

   2 answers
4. What are effective preprocessing methods for reducing data set size (e.g., removing records) without losing information for machine learning problems?
   5 votes

   5 answers
5. In supervised multiclass classification, why is the macro F1 score used instead of balanced accuracy?
   3 votes

   2 answers