Re: [R] re-order the rows of a data frame accroding to a specified order of some column

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 wrote: Dear all, I have a data frame with several columns,

Re: [R] re-order the rows of a data frame accroding to a specified order of some column

> > Yes, > > x[order(order(z)),] > > Two uses of order are needed, as shown. > Thank you very much, Rich. It's like a magic! Leon [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r

Re: [R] re-order the rows of a data frame accroding to a specified order of some column

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 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

[R] re-order the rows of a data frame accroding to a specified order of some column

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, re