Displaying 1 result from an estimated 1 matches for "tp3250791p3253210".
2011 Feb 01
2
Preparing dataset for glmnet: factors to dummies
Hello list.
For some reason, the makers of glmnet do not accept a dataframe as input.
They expect the input to be a matrix, where the dummies are already
precoded.
Now I have created a sample dataset with
. 11 factor columns with two levels
. 4 factor columns with three levels
. 135 continuous columns (from a standard normal)
. 100 observations (rows)
Say this dataframe is in dfrPredictors.
What