Hi, I have dataframe with CRM_assetID column as category dtype:
df.info() <class 'pandas.core.frame.DataFrame'> RangeIndex: 1435952 entries, 0 to 1435951 Data columns (total 75 columns): startTime 1435952 non-null object CRM_assetID 1435952 non-null category searching a dataframe for each of three categories: df[df.CRM_assetID == 'V1254748'].shape (35, 75) df[df.CRM_assetID == 'V805722'].shape (45, 75) df[df.CRM_assetID == 'V1105400'].shape (34, 75) len(df.CRM_assetID.cat.categories.isin(['V1254748', 'V805722', 'V1105400'])) Why this len is not equal to 114 (35 + 45 + 34)? Regards. -- https://mail.python.org/mailman/listinfo/python-list