update setup & documentation in code
update/document cosubject processing code
rewrite/clean up cosubject extraction code
update package info.
rearrange code
reorganize metadata extraction
relabel some variables
update combined tagging improvement code.
move this code
update documentation
move and edit final processing code
update metadata extraction code, add its variable into the main list.
update data output code
finish writing markdown script for generating final data from raw.
update documentation
minor code fixes
rehaul PGL code for this format of data
update pgl code
add code for correlation method