Marc Bernard <bernarduse1 <at> yahoo.fr> writes: > I would be grateful if you can help me. My problem is the following: > I have a data set like: > > ID time X1 X2 > 1 1 x111 x211 > 1 2 x112 x212 .... > where X1 and X2 are 2 covariates and "time" is the time of observation and ID indicates the cluster. > > I want to merge the above data by creating a new variable "X" and "type" as follows: > > ID time X type > 1 1 x111 X1 ....
Try reshape. And have courage, this is one of the more complex interfaces in R, very powerful, but intimidating. Dieter ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
