I started gene enrichment analysis but I am started with R error mentioned below.
> library(clusterProfiler) library(GSEABase) library(org.Hs.eg.db) > filename<- "c7.all.v7.1.entrez.gmt" gmtfile <- system.file(filename) > c6 <- read.gmt(gmtfile)
I get error
> Error in stack.default(res) : at least one vector element is required In addition: Warning message: In file(con, "r") : file("") only supports open = "w+" and open = "w+b": using the former
What should I do for it? Thank you