scranpy needs orgdb to replicate scrapper examples

[LTLA]

Specifically from ?aggregateAcrossGenes.se:

     library(org.Mm.eg.db)
     some.sets <- select(
         org.Mm.eg.db,
         keytype="GO",
         keys=c(
             "GO:0048709", # oligodendrocyte differentiation 
             "GO:0048699", # neuron development
             "GO:0048143"  # astrocyte activation 
         ),
         columns="SYMBOL"
     )

should return a data frame of relationships between the GO term and the gene symbol. For some reason the EVIDENCE and ONTOLOGY columns are also included, perhaps the select method for OrgDb objects checks if the keytype is GO and adds some extra columns.

Similarly from ?scoreGeneSet.se:

library(org.Mm.eg.db)
oligo.set <- select(org.Mm.eg.db, keytype="GO", keys="GO:0048709", columns="SYMBOL")
oligo.set <- unique(oligo.set$SYMBOL)