Re: [R] R data query

From: Roger Bivand <Roger.Bivand_at_nhh.no>
Date: Thu 21 Sep 2006 - 12:15:16 GMT


On Thu, 21 Sep 2006, Al-Kharusi, L. wrote:

> Dear Sir/Madam,
>
>
> I am encountering one of those alien computer momements one finds every
> so often in life. See the sequence below:
>
> > fish3.fis <-read.csv("emperor2.csv", check.names = TRUE, strip.white =
> TRUE)
> > colnames(fish3.fis)
> [1] "Month" "Year" "FishingArea"
> "SumOfTotalCatch" "CPUE"
> [6] "rCPUE" "PA" "Latitude" "Longitude"
> "Depth"
> [11] "SST"
> > hist(CPUE)
> Error in hist(CPUE) : Object "CPUE" not found

hist(fish3.fis$CPUE)

CPUE is inside the data.frame object and so cannot be "seen" in the workspace.

Reviewing:

http://cran.r-project.org/doc/manuals/R-intro.html#Data-frames

may help.

>
> So, the system knows CPUE exists, but will not do a hist or a gam model
> using the term - but for some strange reason it will do a plot. I have
> created a completely different data file and that same problem is
> happening. The imported files are exactly the same as I was using quite
> happily last month.
>
> As you will see from the above I've tried adding check.names and
> strip.white in the reading in process to avoid the unseen effect of
> blank spaces.
>
> Any ideas what I might do next? Have you come across this issue at all?
>
> Thanks
>
>
> Lubna Al-Kharusi
> PhD student (GIS)
> Department of Geography
> University of Leicester
> University Road
> Leicester
> LE1 7RH
> mobile # 07886990332
>
> ______________________________________________
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> 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.
>

-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand@nhh.no

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Received on Thu Sep 21 22:19:25 2006

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