added variant ratios to PCA output

1 job for master in 1 minute and 16 seconds (queued for 3 seconds)
Name Stage Failure
failed
test Test There is an unknown failure, please try again
  Downloading pycryptodomex-3.4.6.tar.gz (6.5MB)
Collecting rpy2 (from fractalis==0.0.0)
Downloading rpy2-2.9.0.tar.gz (193kB)
Complete output from command python setup.py egg_info:
Error: Tried to guess R's HOME but no command 'R' in the PATH.

----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-kizhlrmi/rpy2/
ERROR: Job failed: exit code 1