mda (version 0.5-4)

confusion: Confusion Matrices

Description

Compute the confusion matrix between two factors, or for an fda or mda object.

Usage

# S3 method for default
confusion(object, true, ...)
# S3 method for fda
confusion(object, data, ...)

Value

For the default method essentially table(object, true), but with some useful attribute(s).

Arguments

object

the predicted factor, or an fda or mda model object.

true

the true factor.

data

a data frame (list) containing the test data.

...

further arguments to be passed to or from methods.

Details

This is a generic function.

See Also

fda, predict.fda

Examples

data(iris)
irisfit <- fda(Species ~ ., data = iris)
confusion(predict(irisfit, iris), iris$Species)
##            Setosa Versicolor Virginica 
##     Setosa     50          0         0
## Versicolor      0         48         1
##  Virginica      0          2        49
## attr(, "error"):
## [1] 0.02