Hello, Can you run str() on your data and report the results?
str(en.id.pr) I suspect that one of your variables that you are trying to sum over is a factor. HTH, Josh 2010/5/18 Changbin Du <[email protected]>: >> head(en.id.pr) > valid.gene_id b.pred rf.pred svm.pred > 1521 2500151211 0 0 0 > 366 639679745 0 0 0 > 1965 2502081603 1 1 1 > 1420 644148030 1 1 1 > 1565 2500626489 1 1 1 > 1816 2501711016 1 1 1 > > >> p.pred <- data.frame(en.id.pr, sum=apply(en.id.pr[,2:4], 1, sum)) # get > the row sum for three variables. > Error in FUN(newX[, i], ...) : invalid 'type' (character) of argument > > > HI, Dear R community, > > I am try use the above codes to get the row sums, but it gave me errors. > CAN someone help me with this? > > > -- > Sincerely, > Changbin > -- > > Changbin Du > DOE Joint Genome Institute > Bldg 400 Rm 457 > 2800 Mitchell Dr > Walnut Creet, CA 94598 > Phone: 925-927-2856 > > [[alternative HTML version deleted]] > > ______________________________________________ > [email protected] 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. > -- Joshua Wiley Senior in Psychology University of California, Riverside http://www.joshuawiley.com/ ______________________________________________ [email protected] 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.

