R: Calculate Hellinger Distance

CalcHellingerDist {textmineR}

R Documentation

Calculate Hellinger Distance

Description

Calculates the Hellinger distances or the rows or columns of a numeric matrix or for two numeric vectors.

Usage

CalcHellingerDist(x, y = NULL, by_rows = TRUE)

Arguments

`x`	A numeric matrix or numeric vector
`y`	A numeric vector. `y` must be specified if `x` is a numeric vector.
`by_rows`	Logical. If `x` is a matrix, should distances be calculated by rows?

Value

If x is a matrix, this returns an square and symmetric matrix. The i,j entries correspond to the Hellinger Distance between the rows of x (or the columns of x if by_rows = FALSE). If x and y are vectors, this returns a numeric scalar whose value is the Hellinger Distance between x and y.

Examples

x <- rchisq(n = 100, df = 8)
y <- x^2
CalcHellingerDist(x = x, y = y)

mymat <- rbind(x, y)
CalcHellingerDist(x = mymat)

[Package textmineR version 3.0.5 Index]