hex
Class BaseStatsTask

java.lang.Object
  jsr166y.ForkJoinTask<java.lang.Void>
      jsr166y.CountedCompleter
          water.H2O.H2OCountedCompleter
              water.DTask<T>
                  water.DRemoteTask<T>
                      water.MRTask
                          hex.BaseStatsTask

All Implemented Interfaces:

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

public final class BaseStatsTask
extends MRTask

Class for storing and updating basic column stats (max, min, mean, sigma).

See Also:

Serialized Form

Field Summary

Fields inherited from class water.MRTask

_hi, _lo

Fields inherited from class water.DRemoteTask

_fs, _is_local, _keys

Fields inherited from class water.DTask

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

Constructor Summary

BaseStatsTask(ValueArray ary)

Method Summary

ValueArray.Column[]	getCols()
void	map(Key key) Run some useful function over this local key, and record the results in the this MRTask.
double	max(int c)
double	mean(int c)
double	min(int c)
long	nobs(int c)
void	reduce(DRemoteTask drt)
double	sigma(int c)

Methods inherited from class water.MRTask

hi, init, lcompute, lo, lonCompletion, memOverheadPerChunk, onExceptionalCompletion

Methods inherited from class water.DRemoteTask

alsoBlockFor, alsoBlockFor, clone, compute2, dfork, getFutures, invoke, invokeOnAllNodes, keys, merge, merge, merge, onCompletion, reduceAlsoBlock

Methods inherited from class water.DTask

copyOver, dinvoke, 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

Constructor Detail

BaseStatsTask

public BaseStatsTask(ValueArray ary)

Method Detail

map

public void map(Key key)

Description copied from class: MRTask

Run some useful function over this local key, and record the results in the this MRTask.

Specified by:

map in class MRTask

reduce

public void reduce(DRemoteTask drt)

Specified by:

reduce in class DRemoteTask

min

public double min(int c)

max

public double max(int c)

mean

public double mean(int c)

sigma

public double sigma(int c)

nobs

public long nobs(int c)

getCols

public ValueArray.Column[] getCols()