This function downloads the latest homologene file from NCBI. Note that Homologene
has not been updated since 2014 so the output will be identical to homologeneData
included in this package. This function is here for futureproofing purposes.
getHomologene(destfile = NULL, justRead = FALSE)
Path of the output file. If NULL a temp file will be used
If TRUE and destfile exists, it reads the file instead of downloading the latest one from NCBI
A data frame with homology groups, gene ids and gene symbols