Discriminant

Linear Discriminant Analysis (LDA) for vowel classification, speaker identification, and other multivariate acoustic classification tasks.

Arguments

.xptr

Not for direct use. External pointer to the underlying C++ Discriminant object; set internally when a method returns a new Discriminant (for example discriminant_from_matrix).

Value

A Discriminant object with methods for querying discriminant functions, eigenvalues, and group statistics.

Details

Discriminant analysis is commonly used in phonetics for vowel classification, speaker identification, dialect/accent classification, and phoneme recognition.

See also

PCA

Examples

set.seed(1)
data <- matrix(c(rnorm(10, 500), rnorm(10, 700)), ncol = 1,
                dimnames = list(NULL, "f1"))
labels <- rep(c("a", "i"), each = 10)
disc <- discriminant_from_matrix(data, labels)
disc$get_number_of_groups()
#> [1] 2
disc$get_eigenvalues()
#> [1] 12690.19