Try this: Lines <- "Tanaka Mitchell Wang Hunter Chen Chim miR-191* let-7e let-7b miR-126 let-7a let-7g miR-198 let-7f let-7c miR-146a let-7b let-7i miR-22 let-7g miR-1224 miR-16 let-7d miR-130b miR-223 let-7i miR-124 miR-191 let-7f miR-133a miR-296 let7fG15A miR-125a-3p miR-222 let-7g miR-140 miR-30d miR-101 miR-125b-5p miR-223 let-7i miR-142-5p miR-370 miR-103 miR-133a miR-24 miR-101 miR-146 miR-486 miR-125a-5p miR-133b miR-26a miR-103 miR-148a miR-498 miR-126 miR-135a* miR-32 miR-106a miR-152"
DF <- read.table(textConnection(Lines), header = TRUE, as.is = TRUE) xtabs(~ values + ind, stack(DF)) On Sat, May 23, 2009 at 8:44 AM, Iain Gallagher <iaingallag...@btopenworld.com> wrote: > > Hello list. > > I am hoping for some help with a relatively simple problem. I have a data > frame arranged as below. I want to be able to count the occurrence of each > gene (eg let-7e) by Experiment. In other words how many times does a given > gene crop up in the dataframe. I tried table but couldn't work out how to get > the output I want. I have also considered rearranging this data into a list > (by gene) and then counting the length of each gene element. However I > thought that there might be a more elegant solution. > > Tanaka Mitchell Wang Hunter Chen Chim > miR-191* let-7e let-7b miR-126 let-7a let-7g > miR-198 let-7f let-7c miR-146a let-7b let-7i > miR-22 let-7g miR-1224 miR-16 let-7d miR-130b > miR-223 let-7i miR-124 miR-191 let-7f miR-133a > miR-296 let7fG15A miR-125a-3pmiR-222 let-7g miR-140 > miR-30d miR-101 miR-125b-5pmiR-223 let-7i miR-142-5p > miR-370 miR-103 miR-133a miR-24 miR-101 miR-146 > miR-486 miR-125a-5pmiR-133b miR-26a miR-103 miR-148a > miR-498 miR-126 miR-135a* miR-32 miR-106a miR-152 > > Thanks for any advice. > > Cheers > > Iain > > ______________________________________________ > 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. > ______________________________________________ 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.
