You can also write x[match(z,x[,2]),]. Leila
on 2010/08/16 06:36 AM RICHARD M. HEIBERGER said the following:
Yes, x[order(order(z)),] Two uses of order are needed, as shown. Rich On Sun, Aug 15, 2010 at 11:47 PM, Leon Yee <[email protected]> wrote:Dear all, I have a data frame with several columns, and I have the specified order of a given column. How can I re-order the rows of my data frame accroding to this specified order? for example, x = data.frame( num = 1:26, alpha = letters[1:26], stringsAsFactors=FALSE) z = sample(x$alpha, replace=FALSE) Can I re-order x accroding to z ? Thanks, Leon[[alternative HTML version deleted]] ______________________________________________ [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 and provide commented, minimal, self-contained, reproducible code.
______________________________________________ [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 and provide commented, minimal, self-contained, reproducible code.
