Re: [R] mean on a table

From: Farrel Buchinsky <fjbuch_at_gmail.com>
Date: Fri 12 Jan 2007 - 04:11:00 GMT

Not that I know of.
When I get back to the office I will check it out. I certainly do not recall having created one. I wonder if a library I am working with maybe created a mean function. How do I figure out if I have a loose cannon mean function on the run
in my system?

On 1/11/07, Peter Dalgaard <p.dalgaard@biostat.ku.dk> wrote:
> Farrel Buchinsky wrote:
> > Please suggest areas that I should troubleshoot. This command used to
> > give me an answer and now it gives me an error.
> >
> >> mean(no.genot,na.rm=T)
> >>
> > Error in tapply(x, by, sum, na.rm = TRUE) :
> > arguments must have same length
> > I tried removing the na.rm=T)
> >
> >> mean(no.genot)
> >>
> > Error in `names<-.default`(`*tmp*`, value = c("by.1", "by.0")) :
> > attempt to set an attribute on NULL
> >
> > The structure of my table is as follows.
> >
> >> str(no.genot)
> >>
> > table [, 1:467] 0.000 0.261 0.315 0.274 0.349 ...
> > - attr(*, "dimnames")=List of 1
> > ..$ : chr [1:467] "NC" "RP138" "RP139" "RP140" ...
> >
> > Strangely enough
> >
> >> mean(no.genot[1:467])
> >>
> > [1] 0.2426167
> >
> > That seems to work.
> >
> Have you perhaps a stray mean() or mean.table() function lying around?

>

> Doesn't look like it would normally happen:
>

> > tb <- as.table(as.double(1:10))
> > str(tb)
> table [, 1:10] 1 2 3 4 5 6 7 8 9 10
> - attr(*, "dimnames")=List of 1
> ..$ : chr [1:10] "A" "B" "C" "D" ...
> > mean(tb)
> [1] 5.5
>
>
>
>


-- 
Farrel Buchinsky
Mobile: (412) 779-1073

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Received on Fri Jan 12 15:14:56 2007

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