Comments (1)
```r
'~/db/msigdb/h.all.v7.4.symbols.gmt' %>%
{list(path=., ncol={count.fields(., sep='\t') %>% max()})} %>%
{read.table(file=.$path, sep='\t', fill=TRUE, header=FALSE, col.names=c('pathway', 'url', str_c('id.', 1:.$ncol)))} %>%
dlply(~pathway, function(x) list(url=x$url, ids=select(x, starts_with('id.')) %>% unlist(use.names=FALSE) %>% na.omit() %>% str_subset('^$', negate=TRUE))) -> hallmark_pathways
poi <- c('HALLMARK_TNFA_SIGNALING_VIA_NFKB', 'HALLMARK_INTERFERON_GAMMA_RESPONSE', 'HALLMARK_INTERFERON_ALPHA_RESPONSE')
hallmark_pathways[poi] %>%
lapply(pluck, 'ids') %>%
unlist(use.names=FALSE) %>%
unique() -> goi
dds %>%
metadata() %>%
pluck('gene_information') %>%
filter(gene_name %in% goi) %>%
pluck('ensembl_gene_id') -> goi
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