Hi, I guess you have commas as decimals in your data. Replace it to decimal points.
Best, Denes > > On Mar 21, 2011, at 1:57 PM, pat...@gmx.de wrote: > >> Hi list, >> >> I have problems with the as.numeric function. I have imported >> probabilities from external data, but they are classified as factors >> as str() shows. Therefore my goal is to convert the colum from >> factor to numeric level with keeping the decimals. >> >> I have googled the problem for a while now and kept to several >> advices like >> http://cran.r-project.org/doc/FAQ/R-FAQ.html#How-do-I-convert-factors-to-numeric_003f >> and history from the list but it is impossible for me to convert >> the data to numeric without rounding or ranking the values. > > Are you sure about rounding? The console display of numbers is > determined by options that can be changed: > > ?options > > The "ranking" may represent an error on your part. You offer nothing > that can be used to check your interpretations. Why not offer: > > dput(head(data_object)) > > >> >> E.g.: >> Simply using as.numeric puts the values into ranked classes as >> explained in the manual, >> As.numeric(as.character(probas)) as well as as.numeric(levels(probas >> $forecast_probs))[as.integer(probas$forecast_probs)] >> return NA for every row. > > Then maybe they were NA to begin with? > > Have you tried importing with colClasses set to "numeric" for the > columns you knew to be such? >> > > -- > > David Winsemius, MD > Heritage Laboratories > West Hartford, CT > > ______________________________________________ > 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. > ______________________________________________ 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.
