Le samedi 20 octobre 2012 à 14:25 +0200, Brian a écrit :
> Hi Jim,
>
> On 10/20/12 13:36, Jim Holtman wrote:
> > how about supplying the context of the error. Show the lines in the file
> > where the error occurred.
> >
> > Sent from my iPad
> >
> > On Oct 20, 2012, at 7:21, Brian <zenli...@gmail.com> wrote:
> >
> >> Hi List,
> >>
> >> when supplying a vector of atomic vector classes to read.table, I get:
> >> # column classes
> >> colClasses=c("character", "character","numeric", "numeric",
> "numeric", "numeric", "numeric", "numeric",
> >> "numeric", "numeric", "numeric", "numeric")
> >> # Error:
> >> Error in scan(file, what, nmax, sep, dec, quote, skip, nlines,
> na.strings, (from #2) :
>
> Line #2: (with 'skip=4', so really line 4, but the first line after the
> 'header', as indicated above)
>
> LAE;201001010000;2;894.6;3.9;93.8;5.3;3.1;204
>
>
> >> scan() expected 'a real', got '894.6'
> >>
> >> How is '894.6' not 'a real [number]'?
> >>
> >> Thanks for the ensuing enlightenment or punishment...
> >>
> >> Best,
> >> Brian
> >>
> >> ______________________________________________
> >> 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.
>
> my full command:
>
> read.csv2(file=file, skip=2, na.strings = "-",
> colClasses=c("character", "character","numeric", "numeric",
> "numeric", "numeric", "numeric", "numeric"))
Why didn't you tell us that you were using read.csv2() and not
read.table() directly? read.csv() passes dec="," to read.table(), which
explains why numbers with a dot are not detected as reals. Just pass
dec="." to fix the problem
Regards
> Also, sorry I forgot this:
>
> R version 2.15.1 (2012-06-22)
> Platform: x86_64-unknown-linux-gnu (64-bit)
>
> locale:
> [1] C
>
> attached base packages:
> [1] stats graphics grDevices utils datasets base
>
> other attached packages:
> [1] MASS_7.3-18
>
> Thanks again.
> Brian
>
> ______________________________________________
> 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.
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
