On 17-05-2013, at 20:15, masumeh akhgar <akhgar.masu...@gmail.com> wrote:
> Hello, > > I fail to tranfer data from a dataframe to a matrix. > > var is from a dataframe (and belongs still to the class dataframe) and > should look like m (see below). > >> var > vec1 vec3 d1 d2 > 1 172 173 223 356 >> dput (var) > structure(list(vec1 = 172L, vec3 = 173L, d1 = 223L, d2 = 356L), .Names = > c("vec1", > "vec3", "d1", "d2"), row.names = 1L, class = "data.frame") >> m #THIS IS THE AIM > [,1] [,2] > [1,] 172 223 > [2,] 173 356 > >> dput (m) > structure(c(172, 173, 223, 356), .Dim = c(2L, 2L)) > > How can I transform var to m? > Thanks > akhgar This question appears to be an almost exact copy of this: http://r.789695.n4.nabble.com/convert-a-data-frame-to-matrix-td4667256.html See the answers there. Spam? Berend ______________________________________________ R-help@r-project.org 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.