Kristen, Try something like this:
i <- sample(1:nrow(DataSet.Sub2), 85, replace=FALSE) DataSet.Sub2.66<- DataSet.Sub2[i,] DataSet.Sub2.33<- DataSet.Sub2[-i,] Peter -- Péter Sólymos, Dept Biol Sci, Univ Alberta, T6G 2E9, Canada AB soly...@ualberta.ca, Ph 780.492.8534, http://psolymos.github.com Alberta Biodiversity Monitoring Institute, http://www.abmi.ca Boreal Avian Modelling Project, http://www.borealbirds.ca On Tue, Sep 18, 2012 at 3:56 PM, Kristen Gorman <kgor...@sfu.ca> wrote: > Dear all, > I have a dataset where I would like to take 2/3 of the data to build a model > and test it on the remaining 1/3 of the dataset. In order to generate the 2/3 > dataset I have the following code: > > # 85 is .66 of 129 in order to generate random number for 2/3 dataset. > DataSet.Sub2.66<- DataSet.Sub2[sample(1:nrow(DataSet.Sub2), 85, > replace=FALSE),] > > Now, I would like to generate a separate dataset from the remaining 1/3 > dataset not selected for the 2/3 dataset. Any ideas on how best to do this? > > > Thanks for any input, > > Kristen > > _______________________________________________ > R-sig-ecology mailing list > R-sig-ecology@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-ecology > _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
