Create script to extract intersections between sets from gather output

[brooksph]

Pyupset (python) and UpsetR (R) generate nice plots with interactions between sets but pyupset does not print the unique values/groups or the intersection between these sets. @halexand and I can take this on. Just placing this here as a reminder.

[ctb]

@taylorreiter what are you using these days?

[taylorreiter]

Something like this! Which isn't very pretty, but does the job. As @brooksph stated, upset plots are nice, but they do not print the unique values/groups or the intersection between these sets...so I brute force it in a very not clever way at the bottom of the attached R script. plot_gather_output_var_imp.R.txt

[ctb]

(could you post an example image? :)

[taylorreiter]

upset_var_imp_genomes2.pdf

[ctb]

really nice, thanks taylor! here it is, inline --

[ctb]

ref #1234

[ctb]

aaaaactually this strikes me as an eminently doable thing for a new sig subcommand - basically something like sourmash sig overlap but for n signatures, not just two.

could output a file format that is trivial to load into 'upset' plotting code per #1234.

[taylorreiter]

This is the format that goes into the R libraries

  de novo kaa-mer reference                               
       1       1         0 
       1       0         0 
       1       1         0 
       1       1         0 
       1       0         0 
       1       0         0 

[ctb]

adding the upset command via the betterplot plugin in https://github.com/sourmash-bio/sourmash_plugin_betterplot/pull/35 - it produces figures like this: