hex

Class ConfusionMatrix

java.lang.Object

water.Iced

hex.ConfusionMatrix

All Implemented Interfaces:

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

public class ConfusionMatrix
extends Iced

Compare two categorical columns, reporting a grid of co-occurrences.
The semantics follows R-approach - see R code:

  > l = c("A", "B", "C")
  > a = factor(c("A", "B", "C"), levels=l)
  > b = factor(c("A", "B", "A"), levels=l)
  > confusionMatrix(a,b)

            Reference
 Prediction A B C
          A 1 0 0
          B 0 1 0
          C 1 0 0
  

Note: By default we report zero rows and columns.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
Frame	actual
long[][]	cm
double	mse
Frame	predict
Vec	vactual
Vec	vpredict

Constructor Summary

Constructors

Constructor and Description
ConfusionMatrix()

Method Summary

Methods

Modifier and Type	Method and Description
void	execImpl()
void	toASCII(java.lang.StringBuilder sb)

Methods inherited from class water.Iced

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

Methods inherited from class java.lang.Object

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

Field Detail

actual

public Frame actual

vactual

public Vec vactual

predict

public Frame predict

vpredict

public Vec vpredict

cm

public long[][] cm

mse

public double mse

Constructor Detail

ConfusionMatrix

public ConfusionMatrix()

Method Detail

execImpl

public void execImpl()

toASCII

public void toASCII(java.lang.StringBuilder sb)