Factor Madness
You may be haning Ion coerced into a factor. Have a look at http://finzi.psych.upenn.edu/R/Rhelp02a/archive/98260.html for some discussion of this. I find that I usually set options(stringsAsFactors = FALSE) just because of this but as Gabor points out it may have its own disadvantages in sharing code. I spent 2 hours once trying to get an example to work only to find that the code assume options(stringsAsFactors = TRUE). --- Johannes Graumann <johannes_graumann at web.de> wrote:
As Tony assumed: a data frame. Joh John Kane wrote:
What was spectrum orginally? --- Johannes Graumann <johannes_graumann at web.de> wrote:
Why is class(spectrum[["Ion"]]) after this
"factor"?
spectrum <- cbind(spectrum,Ion=rep("",
nrow(spectrum)),Deviation.AMU=rep(0.0,
nrow(spectrum)))
slowly going crazy ...
Joh
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______________________________________________ R-help at 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 at 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.