Distance to centroid

Calculates the mean of distance from each point to the geometric center (centroid)

SDC(xyz)

Arguments

xyz

A data.frame with x, y, z coordinates.

Value

The mean of squared Euclidean distance to the centroid.

Examples

xyz <- matrix(seq.int(12), ncol = 3, dimnames=list(NULL, c('x', 'y', 'z')))
SDC(xyz)
#> [1] 3.75