hex.glm
Class GLMTask<T extends GLMTask<T>>

java.lang.Object
  jsr166y.ForkJoinTask<java.lang.Void>
      jsr166y.CountedCompleter
          water.H2O.H2OCountedCompleter
              water.DTask
                  water.MRTask2<T>
                      hex.FrameTask<T>
                          hex.glm.GLMTask<T>

All Implemented Interfaces:

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

Direct Known Subclasses:

GLMTask.GLMIterationTask

public abstract class GLMTask<T extends GLMTask<T>>
extends FrameTask<T>

Base class for all GLM-related MRTask(2)s. Filters rows with NA(s), handles data-regularization of numeric columns on the fly, and performs on-the fly expansion of categoricals. Users should override processRow method and potentially reduce.

See Also:

Serialized Form

Nested Class Summary

static class

GLMTask.GLMIterationTask One iteration of glm, computes weighted gram matrix and t(x)*y vector and t(y)*y scalar.

Field Summary

protected double[]

_beta

Fields inherited from class hex.FrameTask

_caseMode, _caseVal, _catOffsets, _cats, _normMul, _normSub, _nums, _standardize

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

Constructor Summary

protected	GLMTask(GLMTask gt, double[] beta)
	GLMTask(Job job, GLMParams glm, double[] beta, boolean standardize, GLMParams.CaseMode cm, double cv)
	GLMTask(Job job, GLMParams glm, double[] beta, boolean standardize, GLMParams.CaseMode cm, double cv, int step, int offset, boolean complement)

Method Summary

protected double	computeEta(int ncats, int[] cats, double[] nums)
protected int	diagN()

Methods inherited from class hex.FrameTask

adaptFrame, catOffsets, cats, chunkDone, chunkInit, dfork2, doIt, fullN, largestCat, map, normMul, normSub, nums, processRow, processRow, processRow, processRow, standardize

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, reduce, 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

Field Detail

_beta

protected final double[] _beta

Constructor Detail

GLMTask

public GLMTask(Job job,
               GLMParams glm,
               double[] beta,
               boolean standardize,
               GLMParams.CaseMode cm,
               double cv)

GLMTask

public GLMTask(Job job,
               GLMParams glm,
               double[] beta,
               boolean standardize,
               GLMParams.CaseMode cm,
               double cv,
               int step,
               int offset,
               boolean complement)

GLMTask

protected GLMTask(GLMTask gt,
                  double[] beta)

Method Detail

diagN

protected final int diagN()

computeEta

protected final double computeEta(int ncats,
                                  int[] cats,
                                  double[] nums)