On 04 Dec 2015, at 17:03 , Troels Ring <[email protected]> wrote:
> Dear friends - I have a very simple question -
> I generate a number of dataframes with identical names and want to combine
> them into one large dataframe with the same names -
> here is an example
>
> DF <- data.frame(a=rnorm(10),b=runif(10),ID=0)
> for (i in 1:10){
> DF <- DF+rbind(data.frame(a=rnorm(10),b=runif(10),ID=i))}
>
> - the dataframe do not grow as I thought it would.
>
Don't you mean DF <- rbind(DF, data.frame(...... ?
(Or, but a different discussion, do.call("rbind", lapply(1:10, function(i)
data.frame(.....,ID=i)))
-pd
> How would I do this?
>
> All best wishes
> Troels Ring
> Nephrology
> Aalborg
> Denmark
>
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--
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Office: A 4.23
Email: [email protected] Priv: [email protected]
______________________________________________
[email protected] mailing list -- To UNSUBSCRIBE and more, see
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.
