On Nov 16, 2008, at 9:25 AM, Philipp Pagel wrote:
snip
As you are reading the data from a file anyway, the simplest
solution would probably be to use the colClasses argument ot
read.table in order to get numeric avlues in the first place.
Or use stringsAsFactors = FALSE,
If you have a num
On Sun, Nov 16, 2008 at 02:52:10PM +0100, Oliver Bandel wrote:
> OK, but I thought, when touching the data, it will
> recalculate the levels. Now I see, it does not.
No it doesn't - for the reasons given in my explanation.
> > >> x <- factor(c('A','B','C','A','C'))
> > >> y <- x[x!='C']
> > >> y
Zitat von "Weiss, Bernd " <[EMAIL PROTECTED]>:
> Philipp Pagel schrieb:
> >> * when then looking at str(weblog),
> >>the "-" will stay in the levels, mentioned for the variable
> weblog$V8
> >>-> BAD!
> >>
> >> Is this snormal behaviour?
> >
> > Yes, it is. The idea is that a factor has a
Philipp Pagel schrieb:
* when then looking at str(weblog),
the "-" will stay in the levels, mentioned for the variable weblog$V8
-> BAD!
Is this snormal behaviour?
Yes, it is. The idea is that a factor has a given set of levels
independent of how often you find them in your data - inclu
> * when then looking at str(weblog),
>the "-" will stay in the levels, mentioned for the variable weblog$V8
>-> BAD!
>
> Is this snormal behaviour?
Yes, it is. The idea is that a factor has a given set of levels
independent of how often you find them in your data - including
the case th
Hello,
* I read in a server weblog with read.table.
-> OK.
* I look for the downloaded-size-values (filesize of the download)
-> OK
* I found "-" and wanted to substitute them with "0" and
used: weblog$V8[ weblog$V8 == "-" ] <- 0
-> OK
* checked the contents on "-" vs. "0" and
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