Amit Patel <amitrh...@yahoo.co.uk> writes: >>str(FullDataListTrans) > num [1:40, 1:94727] 42 40.9 65 56 61.7 ... > - attr(*, "dimnames")=List of 2 > ..$ : chr [1:40] "X" "X.1" "X.12" "X.13" ... > ..$ : NULL > > I have also created a vector "GroupingList" which gives the groupnames for > each > respective sample(row). > >> GroupingList > [1] 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 > 4 4 > [39] 4 4 >> str(GroupingList) > int [1:40] 1 1 1 1 1 1 1 1 1 1 ... > > I am now stuck while conducting the plsr. I have tried various methods of > creating structured lists etc and have got nowhere. I have also tried many > incarnations of > > > BHPLS1 <- plsr(GroupingList ~ PCIList, ncomp = FeaturePresenceExpected[1], > data > = FullDataListTrans, validation = "LOO") > > Where am I going wrong.
You are not telling us what happens (or how you tried to make "structured lists"), but from your description of the data, FullDataListTrans is a matrix with only the the predictor variables, and GroupingList is a vector with the response. The data argument of plsr() (as of most modelling functions in R) expects a data.frame with both response and predictor variables. Try this: mydata <- data.frame(GroupingList = GroupingList, PCIList = I(FullDataListTrans)) (The I() is to prevent R from making the coloumns in FullDataListTrans separate variables in the data frame.) BHPLS1 <- plsr(GroupingList ~ PCIList, ncomp = FeaturePresenceExpected[1], data = FullDataListTrans, validation = "LOO") -- Regards, Bjørn-Helge Mevik ______________________________________________ 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.
