hello,
I want to make a two dimensional matrix from the data table.That data
table has three column 1st is userid,2nditemid and 3rd is rating
corresponding to the itemid given by userid.I want to make a m*n matrix in
which 'm' is userid and 'n' to be itemid .That 2D matrix should b filled
with that corresponding rating for that itemid for that userid. please help
me out.
--
View this message in context:
http://r.789695.n4.nabble.com/List-of-multidimensional-arrays-tp4647286p4647458.html
Sent from the R help mailing list archive at Nabble.com.
______________________________________________
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.
