Update PBTA ancestry cohort (3/N)

[rjcorb]

Purpose/implementation Section

What scientific question is your analysis addressing?

Closes #62. This PR addresses minor issues with cohort described in issue #62.

What was your approach?

• removed parental sample
• added missing matched tumor histology data for ID BS_M52K86E6
• add plot group assignment for those samples that were previously NA

What GitHub issue does your pull request address?

#62

Directions for reviewers. Tell potential reviewers what kind of feedback you are

soliciting.

Which areas should receive a particularly close look?

Please review updated code and ensure that all patients in analyses/add-histologies/results/merged_ancestry_histology_data.tsv have an assigned plot group. NOTE: the sample listed above will still have NA for Kids_First_Biospecimen_ID_tumor, but should have an assigned plot group.

Is there anything that you want to discuss further?

Is the analysis in a mature enough form that the resulting figure(s) and/or table(s) are

ready for review?

Results

What types of results are included (e.g., table, figure)?

What is your summary of the results?

Reproducibility Checklist

• The dependencies required to run the code in this pull request have been added to the
  project Dockerfile.
• This analysis has been added to continuous integration.

Documentation Checklist

• This analysis module has a README and it is up to date.
• This analysis is recorded in the table in analyses/README.md and the entry is up to
  date.
• The analytical code is documented and contains comments.

[jharenza]

👍