On May 14, 2012, at 11:23 AM, barb wrote:
Hey David,
thanks for your fast reply, i really appreciate that you answer so
many
posts.
Unfortunately it´s not that easy. Try to operate with the output:
e.g
file<-read.csv2(tmp,sep=";",skip="5")
a<-(relevant<-file[,2][1])
a*5
# or
as.numeric(relevant<-file[,2][1])
a is saved in the workspace as a factor and the values i actually
need are
saved as the labels.
(therefore my subject)
Your subject line asked for "labels". That is not a word that
represents anything specific in R parlance except perhaps plotting
function arguments. It you want to prevent the conversion of
"character" values to factors then you should be using
stringsAsFactors=FALSE in the read functions.
If you want to convert from factor to character correctly, you could
also refer to the FAQ. On my machine the section "7.10 How do I
convert factors to numeric?" is located at:
http://127.0.0.1:13702/doc/manual/R-FAQ.html#How-do-I-convert-factors-to-numeric_003f
You should have a similar copy of the FAQ someplace on your machine.
It's good to review the "miscellaneous" section a couple of times.
Thank You!
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David Winsemius, MD
West Hartford, CT
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