Hi Chris I'm Alejandro Quiroz, from the Department of Biostatistics at Harvard University Did you ever solve the issue about: > source('basicGSEA.R') 'envir' chosen:<environment: r_globalenv=""> encoding = "native.enc" chosen Error: '\%' is an unrecognized escape in character string starting "Tag \%" ? I'm having the same thing with R-GSEA from :http://www.broadinstitute. org/cancer/software/gsea/wiki/index.php/R-GSEA_Readme I would greatly appreciate if you respond! Thanks Alejandro [[alternative HTML version deleted]]