What is the fastest way to output large DataFrame into a CSV file?
Lev. Pandas has rewritten to_csv to make a big improvement in native speed. The process is now i/o bound, accounts for many subtle dtype issues, and quote cases. Here is our performance results vs. 0.10.1 (in the upcoming 0.11) release. These are in ms, lower ratio is better. Results: t_head t_baseline ratio name frame_to_csv2 (100k) … Read more