EvaluationMeasures.PPV {EvaluationMeasures}

EvaluationMeasures.PPV

Description

PPV of prediction

Usage

EvaluationMeasures.PPV(Real = NULL, Predicted = NULL, Positive = 1,
  TP = NULL, TN = NULL, FP = NULL, FN = NULL)

Arguments

Real

Real binary values of the class

Predicted

Predicted binary values of the class

Positive

Consider 1 label as Positive Class unless changing this parameter to 0

TP

Number of True Positives. Number of 1 in real which is 1 in predicted.

TN

Number of True Negatives. Number of 0 in real which is 0 in predicted.

FP

Number of False Positives. Number of 0 in real which is 1 in predicted.

FN

Number of False Negatives. Number of 1 in real which is 0 in predicted.

Details

Positive Predictive Value is What fraction of positive predicted are real positive.

By getting the predicted and real values or number of TP,TN,FP,FN return the Precision or Positive Predicted Value of model

Value

PPV

Author(s)

Babak Khorsand

Examples

EvaluationMeasures.PPV(c(1,0,1,0,1,0,1,0),c(1,1,1,1,1,1,0,0))