I sent this answer yesterday, but it was classed as spam!!! so here it is again:
There is indeed a sequential version. Take a look at the BreimanExample
file. You can find it inside
"examples/src/main/java/org/apache/mahout/df/"
Pleease note that the
main purpose of the sequential implementation is to test any distributed
implementation that we make, so it may be not well optimized.
