Miscellaneous codes

dfall_tools.ipynb appears to have codes that migrated from [10_select_best_events.ipynb]. Those notes again:

• examine the variable onset of events listed in aaa_labelled_events.csv
• sort catalog_all.csv by trigger_duration, and plot one event at a time
• as above, but plot the detection window too
• view events marked for splitting
• read fingerprint files
• subset catalog_all.csv for events checked but not marked to ignore, delete or split. Hopefully this logic made its way into remove_marked_events().
• there must have been a bug where sometimes say when subclass=r but new_subclass=h, still had r=100 and needed to change this to r=0.
• a test subset of dfall by columns