hex.gram

Class Gram.GramTask

java.lang.Object

jsr166y.ForkJoinTask<java.lang.Void>

jsr166y.CountedCompleter

water.H2O.H2OCountedCompleter<T>

water.DTask<T>

water.MRTask<T>

hex.FrameTask2<Gram.GramTask>

hex.gram.Gram.GramTask

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.concurrent.Future<java.lang.Void>, jsr166y.ForkJoinPool.ManagedBlocker, water.Freezable<Gram.GramTask>

Enclosing class:

Gram

public static class Gram.GramTask
extends FrameTask2<Gram.GramTask>

Task to compute gram matrix normalized by the number of observations (not counting rows with NAs). in R's notation g = t(X)%*%X/nobs, nobs = number of rows of X with no NA.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class water.MRTask

water.MRTask.PostMapAction<T extends water.MRTask.PostMapAction<T>>

Nested classes/interfaces inherited from class water.DTask

water.DTask.DKeyTask<T extends water.DTask.DKeyTask,V extends water.Keyed>, water.DTask.RemoveCall

Field Summary

Fields

Modifier and Type	Field and Description
Gram	_gram
long	_nobs

Fields inherited from class hex.FrameTask2

_dinfo, _sparse

Fields inherited from class water.MRTask

_appendables, _fr, _fs, _hi, _keys, _left, _lo, _nhi, _nleft, _nlo, _nrite, _rite, _run_local, _topLocal

Fields inherited from class water.DTask

_ex

Constructor Summary

Constructors

Constructor and Description
GramTask(water.Key<water.Job> jobKey, DataInfo dinfo)
GramTask(water.Key<water.Job> jobKey, DataInfo dinfo, boolean std, boolean intercept)

Method Summary

Modifier and Type	Method and Description
void	chunkDone() Perform action after processing one "chunk" of data/
void	chunkInit() Initialization method, called once per "chunk".
protected void	processRow(DataInfo.Row r)
void	reduce(Gram.GramTask gt)

Methods inherited from class hex.FrameTask2

handlesSparseData, map, setSparse, setupLocal

Methods inherited from class water.MRTask

appendables, asyncExecOnAllNodes, block, closeLocal, compute2, dfork, dfork, dfork, dfork, dfork, dinvoke, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAllNodes, getResult, getResult, isReleasable, map, map, map, map, map, map, map, map, map, map, map, modifiesVolatileVecs, onCompletion, onExceptionalCompletion, outputFrame, outputFrame, outputFrame, postGlobal, profile, profString, self, withPostMapAction

Methods inherited from class water.DTask

copyOver, getDException, hasException, logVerbose, onAck, onAckAck, setException

Methods inherited from class water.H2O.H2OCountedCompleter

asBytes, clone, compute, compute1, currThrPriority, frozenType, icer, priority, read, readJSON, reloadFromBytes, write, writeJSON

Methods inherited from class jsr166y.CountedCompleter

__tryComplete, 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, 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

_gram

public Gram _gram

_nobs

public long _nobs

Constructor Detail

GramTask

public GramTask(water.Key<water.Job> jobKey,
                DataInfo dinfo)

GramTask

public GramTask(water.Key<water.Job> jobKey,
                DataInfo dinfo,
                boolean std,
                boolean intercept)

Method Detail

chunkInit

public void chunkInit()

Description copied from class: FrameTask2

Initialization method, called once per "chunk". Typically create result object used by processRow to store rersults.

Overrides:

chunkInit in class FrameTask2<Gram.GramTask>

processRow

protected void processRow(DataInfo.Row r)

Specified by:

processRow in class FrameTask2<Gram.GramTask>

chunkDone

public void chunkDone()

Description copied from class: FrameTask2

Perform action after processing one "chunk" of data/

Overrides:

chunkDone in class FrameTask2<Gram.GramTask>

reduce

public void reduce(Gram.GramTask gt)

Overrides:

reduce in class water.MRTask<Gram.GramTask>