Total inertia of a pseudospecies matrix

Used as the heterogeneity of a group in modified TWINSPAN.

Usage

tw_inertia(y, w = NULL)

Arguments

y

A binary matrix of stands by pseudospecies.

w

A numeric vector of pseudospecies weights, or NULL.

Value

A numeric of the total inertia (0 when it cannot be computed).

Examples

# \donttest{
data(dune, package = "vegan")
tw_inertia(pseudospecies(dune))
#> [1] 2.500848
# }