Transforms a wfm to the format used by BMR/BLR
wfm2bmr(y, wfm, filename)
| y | integer dependent variable, may be NULL |
|---|---|
| wfm | a word frequency matrix |
| filename | Name of the file to save data to |
A file containing the variables in in sparse matrix format.
BMR is sparse matrix format similar to that used by SVMlight
Each line contains an optional dependent variable index and a sequence of indexes and feature value pairs divided by colons. Indexes refer to the words with non-zero counts in the original matrix, and the feature values are the counts.
Will Lowe