hex.tree

Class DBinomHistogram

java.lang.Object

water.Iced

hex.tree.DHistogram<DBinomHistogram>

hex.tree.DBinomHistogram

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, water.Freezable

public class DBinomHistogram
extends DHistogram<DBinomHistogram>

A Histogram, computed in parallel over a Vec.

Sums (and sums-of-squares) of binomials - 0 or 1. Sums-of-squares==sums in this case.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
int[]	_sums

Fields inherited from class hex.tree.DHistogram

_bins, _isInt, _maxEx, _maxIn, _min, _min2, _name, _nbin, _step

Constructor Summary

Constructors

Constructor and Description
DBinomHistogram(java.lang.String name, int nbins, byte isInt, float min, float maxEx, long nelems)

Method Summary

Methods

Modifier and Type	Method and Description
long	byteSize0()
double	mean(int b)
DTree.Split	scoreMSE(int col, int min_rows)
double	var(int b)

Methods inherited from class hex.tree.DHistogram

bins, byteSize, find_maxEx, find_maxEx, find_maxIn, find_min, initialHist, isConstantResponse, make, nbins, setMax, setMin, toString

Methods inherited from class water.Iced

clone, frozenType, read_impl, read, readExternal, readJSON_impl, readJSON, toJsonString, write_impl, write, writeExternal, writeHTML_impl, writeHTML, writeJSON_impl, writeJSON

Methods inherited from class java.lang.Object

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

Field Detail

_sums

public int[] _sums

Constructor Detail

DBinomHistogram

public DBinomHistogram(java.lang.String name,
               int nbins,
               byte isInt,
               float min,
               float maxEx,
               long nelems)

Method Detail

mean

public double mean(int b)

Specified by:

mean in class DHistogram<DBinomHistogram>

var

public double var(int b)

Specified by:

var in class DHistogram<DBinomHistogram>

scoreMSE

public DTree.Split scoreMSE(int col,
                   int min_rows)

Specified by:

scoreMSE in class DHistogram<DBinomHistogram>

byteSize0

public long byteSize0()

Specified by:

byteSize0 in class DHistogram<DBinomHistogram>