xxyy.to.array {prWarp}

Convert landmark data matrix into array (p x k x n)

Description

Convert a matrix of landmark coordinates into a three-dimensional array

Usage

xxyy.to.array(M, p, k = 2)

Arguments

M

A matrix of dimension n x [p x k] containing landmark coordinates for a set of specimens. Each row contains all landmark coordinates for a single specimen. The first columns correspond to the X coordinates for all landmarks, etc.

p

Number of landmarks

k

Number of dimensions (2 or 3)

Value

Function returns a 3D array (p x k x n), where p is the number of landmark points, k is the number of landmark dimensions (2 or 3), and n is the number of specimens. The third dimension of this array contains names for each specimen if specified in the original input matrix.

See Also

array.to.xxyy

Examples

X <- matrix(rnorm(40), nrow = 4) # Random 2D coordinates of 5 landmarks for 4 specimens
xxyy.to.array(X, 5, 2)