character vectors in data.frames
Dear all, well, today I just seem to run into these problems ... (I am still working on R 0.63.1 on a SuSE 5.2). I would like to have a data.frame that also contains character (and NOT factor) vectors. Two things that I tried (the second worked in R 0.62.2):
test.df <- data.frame (X= character (4)) test.df$X [1] <- "a"
Warning: invalid factor level, NAs generated or:
X <- c ("a", "b", "c")
is.character (X)
[1] TRUE
test.df <- data.frame (X) is.character (test.df$X)
[1] FALSE Any suggestions how to achieve this? Many thanks! -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Lorenz Gygax LGygax at amath.unizh.ch; room: 36-L-40 Department of Applied Mathematics University of Zuerich-Irchel Winterthurerstr. 190; CH-8057 Zurich voice: 41-1-635-58-52 fax: 41-1-635-57-05 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._