hex.drf
Class TreeVotes

java.lang.Object
  jsr166y.ForkJoinTask<java.lang.Void>
      jsr166y.CountedCompleter
          water.H2O.H2OCountedCompleter
              water.DTask
                  water.MRTask2<TreeVotes>
                      hex.drf.TreeVotes

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.concurrent.Future<java.lang.Void>, Freezable

public class TreeVotes
extends MRTask2<TreeVotes>

Score given tree model and preserve errors per tree. This is different from Model.score() function since the MR task uses inverse loop: first over all trees and over all rows in chunk.

See Also:

Serialized Form

Field Summary

Fields inherited from class water.MRTask2

_appendables, _fr, _fs, _hi, _left, _lo, _nleft, _nodes, _nrite, _rite, _topLocal

Fields inherited from class water.DTask

_cls, _eFromNode, _exception, _fname, _lineNum, _msg, _mth

Method Summary

double[]	accuracy() Returns accuracy per individual trees.
void	map(Chunk[] chks) Override with your map implementation.
long[]	nrows() Returns number of rows which were used during voting per individual tree.
void	reduce(TreeVotes t) Override to combine results from 'mrt' into 'this' MRTask2.
long[]	treeCVotes() Returns number of positive votes per tree.
static TreeVotes	varimp(DTree.TreeModel tmodel, Frame f, float rate)

Methods inherited from class water.MRTask2

clone, closeLocal, compute2, dfork, dfork, dfork, dfork, dinvoke, doAll, doAll, doAll, doAll, getResult, map, map, map, map, map, map, map, map, map, map, map, onCompletion, onExceptionalCompletion, outputFrame, outputFrame, postGlobal, profString, reduce4, setupLocal, vecs

Methods inherited from class water.DTask

copyOver, frozenType, getDException, hasException, logVerbose, newInstance, onAck, onAckAck, read, setException, toDocField, write, writeJSONFields

Methods inherited from class water.H2O.H2OCountedCompleter

compute, priority

Methods inherited from class jsr166y.CountedCompleter

addToPendingCount, compareAndSetPendingCount, complete, exec, getCompleter, getPendingCount, getRawResult, setCompleter, setPendingCount, setRawResult, tryComplete

Methods inherited from class jsr166y.ForkJoinTask

adapt, adapt, adapt, cancel, compareAndSetForkJoinTaskTag, completeExceptionally, fork, get, get, getException, getForkJoinTaskTag, getPool, getQueuedTaskCount, getSurplusQueuedTaskCount, helpQuiesce, inForkJoinPool, invoke, invokeAll, invokeAll, invokeAll, isCancelled, isCompletedAbnormally, isCompletedNormally, isDone, join, peekNextLocalTask, pollNextLocalTask, pollTask, quietlyComplete, quietlyInvoke, quietlyJoin, reinitialize, setForkJoinTaskTag, tryUnfork

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

nrows

public final long[] nrows()

Returns number of rows which were used during voting per individual tree.

treeCVotes

public final long[] treeCVotes()

Returns number of positive votes per tree.

accuracy

public final double[] accuracy()

Returns accuracy per individual trees.

map

public void map(Chunk[] chks)

Description copied from class: MRTask2

Override with your map implementation. This overload is given an array of local input Chunks, for Frames with arbitrary column numbers. All map variants are called, but only one is expected to be overridden.

Overrides:

map in class MRTask2<TreeVotes>

reduce

public void reduce(TreeVotes t)

Description copied from class: MRTask2

Override to combine results from 'mrt' into 'this' MRTask2. Both 'this' and 'mrt' are guaranteed to either have map() run on them, or be the results of a prior reduce(). Reduce is optional if, e.g., the result is some output vector.

Overrides:

reduce in class MRTask2<TreeVotes>

varimp

public static TreeVotes varimp(DTree.TreeModel tmodel,
                               Frame f,
                               float rate)