hex.coxph

Class CoxPH.CoxPHTask

java.lang.Object

jsr166y.ForkJoinTask<java.lang.Void>

jsr166y.CountedCompleter

water.H2O.H2OCountedCompleter<T>

water.DTask<T>

water.MRTask<T>

hex.FrameTask<CoxPH.CoxPHTask>

hex.coxph.CoxPH.CoxPHTask

All Implemented Interfaces:

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

Enclosing class:

CoxPH

protected static class CoxPH.CoxPHTask
extends FrameTask<CoxPH.CoxPHTask>

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class hex.FrameTask

FrameTask.ExtractDenseRow

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
protected long[]	countEvents
protected long	n
protected long	n_missing
protected double[]	rcumsumRisk
protected double[][]	rcumsumXRisk
protected double[][][]	rcumsumXXRisk
protected double[]	sizeCensored
protected double[]	sizeEvents
protected double[]	sizeRiskSet
protected double[]	sumLogRiskEvents
protected double[]	sumRiskEvents
protected double[]	sumWeightedCatX
protected double[]	sumWeightedNumX
protected double	sumWeights
protected double[][]	sumXEvents
protected double[][]	sumXRiskEvents
protected double[][][]	sumXXRiskEvents

Fields inherited from class hex.FrameTask

_dinfo, _jobKey, _shuffle, _useFraction

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, _modifiesInputs

Method Summary

Methods

Modifier and Type	Method and Description
protected boolean	chunkInit() Override this to initialize at the beginning of chunk processing.
protected void	postGlobal()
protected void	processRow(long gid, DataInfo.Row row) Method to process one row of the data.
void	reduce(CoxPH.CoxPHTask that)

Methods inherited from class hex.FrameTask

applyMiniBatchUpdate, chunkDone, closeLocal, dinfo, getMiniBatchSize, map, processRow, setupLocal

Methods inherited from class water.MRTask

appendables, asyncExec, asyncExec, asyncExec, asyncExec, asyncExecOnAllNodes, block, compute2, dfork, dfork, dfork, dfork, dinvoke, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAllNodes, getResult, isReleasable, map, map, map, map, map, map, map, map, map, map, map, map, onCompletion, onExceptionalCompletion, outputFrame, outputFrame, outputFrame, postLocal, priority, profString, self, setProfile

Methods inherited from class water.DTask

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

Methods inherited from class water.H2O.H2OCountedCompleter

clone, compute, frozenType, icer, nextThrPriority, read_impl, read, readJSON_impl, readJSON, write_impl, write, writeJSON_impl, writeJSON

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

n

protected long n

n_missing

protected long n_missing

sumWeights

protected double sumWeights

sumWeightedCatX

protected double[] sumWeightedCatX

sumWeightedNumX

protected double[] sumWeightedNumX

sizeRiskSet

protected double[] sizeRiskSet

sizeCensored

protected double[] sizeCensored

sizeEvents

protected double[] sizeEvents

countEvents

protected long[] countEvents

sumXEvents

protected double[][] sumXEvents

sumRiskEvents

protected double[] sumRiskEvents

sumXRiskEvents

protected double[][] sumXRiskEvents

sumXXRiskEvents

protected double[][][] sumXXRiskEvents

sumLogRiskEvents

protected double[] sumLogRiskEvents

rcumsumRisk

protected double[] rcumsumRisk

rcumsumXRisk

protected double[][] rcumsumXRisk

rcumsumXXRisk

protected double[][][] rcumsumXXRisk

Method Detail

chunkInit

protected boolean chunkInit()

Description copied from class: FrameTask

Override this to initialize at the beginning of chunk processing.

Overrides:

chunkInit in class FrameTask<CoxPH.CoxPHTask>

Returns:

whether or not to process this chunk

processRow

protected void processRow(long gid,
              DataInfo.Row row)

Description copied from class: FrameTask

Method to process one row of the data. See for separate mini-batch logic below. Numeric and categorical values are passed separately, as is response. Categoricals are passed as absolute indexes into the expanded beta vector, 0-levels are skipped (so the number of passed categoricals will not be the same for every row). Categorical expansion/indexing: Categoricals are placed in the beginning of the beta vector. Each cat variable with n levels is expanded into n-1 independent binary variables. Indexes in cats[] will point to the appropriate coefficient in the beta vector, so e.g. assume we have 2 categorical columns both with values A,B,C, then the following rows will have following indexes: A,A - ncats = 0, we do not pass any categorical here A,B - ncats = 1, indexes = [2] B,B - ncats = 2, indexes = [0,2] and so on

Overrides:

processRow in class FrameTask<CoxPH.CoxPHTask>

Parameters:

gid - - global id of this row, in [0,_adaptedFrame.numRows())

reduce

public void reduce(CoxPH.CoxPHTask that)

Overrides:

reduce in class water.MRTask<CoxPH.CoxPHTask>

postGlobal

protected void postGlobal()

Overrides:

postGlobal in class water.MRTask<CoxPH.CoxPHTask>