Try this:
1)
mydf[1,paste("col", 4:8, sep="")]
2) You can use comment function:
comment(mydf) <- c("Column number1", "Column number2")
or
comment(mydf$col1) <- "Column number1 etc"
then
comment(mydf) and comment(mydf$col1) to see the labels
On 21/02/2008, Werner Wernersen <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I have two loosely related questions which could make
> my live again a bit easier:
>
> 1) Is there a simple way to select a range of columns
> in a data frame using column names?
> I am thinking of something like mydf[1,"col4":"col8"]
>
> 2) I have a data frame with many columns and they all
> have short variable names which is good in most cases
> but sometimes it would be nice to have also a longer
> descriptive name / label attached to the variable
> which could then be used for printing and latex
> output. Has anybody come up with a convenient way to
> do that?
> Right now, I am using always match or merge in case of
> row names.
>
> Many thanks,
> Werner
>
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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>
--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O
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