Is Decision Forest Map/Reduce only?

[Lance Norskog]

Is the Decision Forest suite in org.apache.mahout.df solely
implemented with Map/Reduce? Is there any example of building the data
structures in memory? org.apache.mahout.df.mapreduce.TestForest shows
(way down deep) how to do classifications, but BuildForest only uses
Map/Reduce.

-- 
Lance Norskog
goks...@gmail.com