> newdataset[testindex] = testset[testindex] > object 'dataset' not found
Is that really what R printed? I get > newdataset[testindex] = testset[testindex] Error in newdataset[testindex] = testset[testindex] : object 'newdataset' not found but perhaps you have a different problem. Copy and paste (and read) the error message you got. Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On > Behalf > Of Brian Feeny > Sent: Saturday, December 01, 2012 8:04 PM > To: r-help@r-project.org > Subject: [R] How to re-combine values based on an index? > > I am able to split my df into two like so: > > dataset <- trainset > index <- 1:nrow(dataset) > testindex <- sample(index, trunc(length(index)*30/100)) > trainset <- dataset[-testindex,] > testset <- dataset[testindex,-1] > > So I have the index information, how could I re-combine the data using that > back into a > single df? > > I tried what I thought might work, but failed with: > > newdataset[testindex] = testset[testindex] > object 'dataset' not found > newdataset[-testindex] = trainset[-testindex] > object 'dataset' not found > > Brian > > ______________________________________________ > 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.