Hi, I have a dataframe "gexp_1" with 115 rows of samples and 27000 columns of gene expression measurements with each column corresponding to one gene. I now have a smaller vector of genes "tp" for which I need to pull out the data form the data frame.
# first gene from the list with 16 genes x <- tp[1,] x [1] geneA 16 Levels: geneA, geneB... #unsuccessful gexp_1$x NULL #or gexp_1$x[1] NULL #but this works gexp_1$geneA I am sure that this is a fundamental error on my part since I am new to R, I would appreciate any advice. I am trying to construct a for loop to analyze data for sets of genes at a time but stuck at this step. Regards Rizwan ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
