[R] Randomly splitting a data frame in half
Christopher David Desjardins
cddesjardins at gmail.com
Thu Mar 19 19:08:48 CET 2009
I have a data frame in long format and I would like to randomly divide
this data frame in half. The data frame consists of 39622 rows and I
initially tried ...
randomsample1 <- data[sample(nrow(data),19811), ]
Where allows me to randomly select half of the rows and assign them to
randomsample1 but then I couldn't figure out how to select those rows
that were not selected and assign them to randomsample2.
Please cc me if you reply as I'm a digest subscriber.
More information about the R-help