Kurt Wollenberg wrote: >Greetings all: > >OK, this is bugging the @[EMAIL PROTECTED] out of me. I know the answer is >simple >and straightforward but for the life of me I cannot find it in the >documentation, in the archives, or in my notes (because I know I've >encountered this in the past). My problem is: > >I have a data frame with columns A, B, C, D, and E. A, B, and E are >factors and C and D are numeric. I need a new data frame with just A, >C, and D. When I copy these columns to a new data frame > > > >>newDF <- data.frame(cbind(oldDF$A, oldDF$C, oldDF$D)) >> >> > >all the factor data comes out as levels rather than the original >factors. How do I preserve the factors when I copy from one data frame >to another? > > > The following may be better:
newDF <- subset(oldDF, select = c(A, C, D)) HTH, Tobias ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
