Read the abstract ➤ https://www.conf42.com/Machine_Learning_2023_Matt_Harrison_polars_optimized_dataframe_library Other sessions at this event ➤ https://www.conf42.com/ml2023 Join Discord ➤ https://discord.gg/DnyHgrC7jC Chapters 0:00 intro 0:22 preface 1:00 relevant background 1:38 outline of opinions 2:32 types 3:03 ints 5:41 strings 6:46 extract ffs, speed & manual 9:16 dates 10:24 chain 12:30 don't apply (if you can) 13:55 master aggregation 18:34 summary