ssgsea_pca: Function to run ssGSEA using the GSVA package and return PCA...
In brucemoran/RNAseqR: RNAseq DE Analysis Downstream from Nextflow Pipelines

Function to run ssGSEA using the GSVA package and return PCA of results

ssgsea_pca(
  pways,
  log2tpm_mat,
  msigdb_cat = "H",
  output_dir,
  contrast,
  metadata
)

`pways`	list of pathway genesets to use in ssGSEA
`log2tpm_mat`	matrix of log2tpm values per sample across genes in gene lists
`msigdb_cat`	one of 'c("H", paste0("C", c(1:7)))', see: gsea-msigdb.org/gsea/msigdb/collections.jsp; if H, loads Process_Category data from Liberzon 2015 paper to colour PCA
`output_dir`	path to where output goes
`contrast`	string used to prefix output naming the contrast being investigated
`metadata`	tibble of sample, \<group\> where group colours the PCA