GetPrecision {Buddle}

Obtaining Accuracy.

Description

Compute measures of accuracy such as precision, recall, and F1 from a given confusion matrix.

Usage

GetPrecision(confusion.matrix)

Arguments

confusion.matrix

a confusion matrix.

Value

An (r+1)-by-3 matrix when the input is an r-by-r confusion matrix.

See Also

CheckNonNumeric(), FetchBuddle(), MakeConfusionMatrix(), OneHot2Label(), Split2TrainTest(), TrainBuddle()

Examples

data(iris)

Label = c("setosa", "versicolor", "virginica")

predicted.label = c("setosa", "setosa",    "virginica", "setosa", "versicolor", "versicolor")
true.label      = c("setosa", "virginica", "versicolor","setosa", "versicolor", "virginica")

confusion.matrix = MakeConfusionMatrix(predicted.label, true.label, Label)
precision = GetPrecision(confusion.matrix)

confusion.matrix
precision