[R] problem with read.table

[Don MacQueen]

  Potential helpers need more information.

Type:

    head(a)

and

    str(a)

and post the results.

Compare with the output of the same commands on a 
dataframe that does have this problem.

-Don

At 5:01 PM +0530 8/25/05, Krishna wrote:
>Hi  Mr. Pedro
>
>I tried names(a) and it displayed the names as X, Y and Z.
>
>rgds
>
>snvk
>
>On 8/25/05, Pedro J. Aphalo <pedro.aphalo at cc.jyu.fi> wrote:
>>  Hi,
>>
>>  Did you try names(a) so see what are the names of the columns in the
>>  dataframe?
>>
>>  Hope this helps a little.
>>
>>  Pedro.
>>
>>  Krishna wrote:
>>  > Hi All
>>  >
>>  > recently i faced an unknown problem while reading the data. Can
>>  > someone help me in understanding why this happened.
>>  >
>>  > I have .txt file containing X, Y, Z variables. I used the command
>>  >
>>  >
>>  >>a <- read.table("filename", header=TRUE)
>>  >
>>  > after reading the file i am able to view it by tryping a. but i am
>>  > unable to access the variables in a, by giving the command a$X.
>>  >
>>  >
>>  >>a$X
>>  >>NULL
>>  >
>>  >
>>  > this is the output it was showing. However the same i am able to
>>  > access by giving a[[1]]. i tried changing the mode by issuing command
>>  > a <- as.data.frame(a). But situation remains the same.
>>  >
>>  > look forward for experts suggestion on this.
>>  >
>>  > rgds
>>  >
>>  > snvk
>>  >
>>  > ______________________________________________
>>  > R-help at stat.math.ethz.ch mailing list
>>  > https://stat.ethz.ch/mailman/listinfo/r-help
>>  > PLEASE do read the posting guide! 
>>http://www.R-project.org/posting-guide.html
>>
>>
>>  --
>>  ==================================================================
>>  Pedro J. Aphalo
>>  Department of Biological and Environmental Science
>>  University of Jyväskylä
>>  P.O. Box 35, 40351 JYVÄSKYLÄ, Finland
>>  Phone  +358 14 260 2339
>>  Mobile +358 50 3721504
>>  Fax    +358 14 260 2321
>>  mailto:pedro.aphalo at cc.jyu.fi
>>  http://www.jyu.fi/~aphalo/                       ,,,^..^,,,
>>  ==================================================================
>>
>>
>
>______________________________________________
>R-help at stat.math.ethz.ch mailing list
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>PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html


-- 
--------------------------------------
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA