Please read the Introduction to R tutorial that ships with R to get
started with R. Quoting Rolf Turner:
" Learn something about R; don't just hammer and hope. Read the
introductory manuals and scan the FAQ."
Cheers,
Bert
On Tue, Oct 30, 2012 at 7:09 AM, alex_123 <deepak.j...@gmail.com> wrote:
> hello , I am new user in R . I have datafile (class = data.frame) which has
> 825 columns with unique column name i want extract 200 selected column from
> datafile how can I do this?
> my datafile look like..
> Mi RBN RBF nDB nX
> 3 2.6225979 0.53132756 -0.80599902 -1.4471864 -0.5705269
> 10 0.4818746 -1.72143092 -2.19579027 2.0118824 -0.5705269
> 12 2.8519611 1.88298265 0.09614617 0.6282549 -0.5705269
> 20 0.6347834 -0.36977583 0.63255683 1.3200687 -0.5705269
>
>
> I want to extract data with unique name of column , by "Mi","RBF" etc . I
> have stored character vector of desired column names. eg aa =
> c("Mi","RBF",..)
>
>
>
>
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/help-extract-data-using-column-names-tp4647869.html
> Sent from the R help mailing list archive at Nabble.com.
>
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--
Bert Gunter
Genentech Nonclinical Biostatistics
Internal Contact Info:
Phone: 467-7374
Website:
http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm
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