On Mon, 2006-04-24 at 14:45 +0530, Arun Kumar Saha wrote:
>
> I tried with following code:
>
> >n=20
> random = data.frame(n)
> for ( i in 2: length)
> {
> random[,i] = random(500,mean=0,sd=i)
> }
>
> but while executing this I am getting errors.
Did you check what you'd done above, or is what you posted not copied
and pasted directly from your R session (and therefore contains typos)?
* data.frame(n) - doesn't make sense; you have data frame with one
row/column containing the number 20
* What is length?
* If you want i=1,2,.......,n, why do you use "i in 2: length"?
* What is random() [the function you are trying to use]?
* What are the error messages - although one can have a good guess
if you actually tried to run that code. You are asked by the
posting guide to supply.
Does this help:
ran <- matrix(ncol = 20, nrow = 500)
for (i in 1:20)
{
ran[, i] <- rnorm(500, sd = i)
}
ran <- as.data.frame(ran)
G
>
> Can anyone give me any suggestion?
> Thanks and regards
> Arun
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@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
--
%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%
* Note new Address, Telephone & Fax numbers from 6th April 2006 *
%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%
Gavin Simpson
ECRC & ENSIS [t] +44 (0)20 7679 0522
UCL Department of Geography [f] +44 (0)20 7679 0565
Pearson Building [e] gavin.simpsonATNOSPAMucl.ac.uk
Gower Street [w] http://www.ucl.ac.uk/~ucfagls/cv/
London, UK. [w] http://www.ucl.ac.uk/~ucfagls/
WC1E 6BT.
%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%
______________________________________________
R-help@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
