shapes: groupstack – R documentation

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groupstack

Combine two or more groups of configurations

Combine two or more groups of configurations and create a group label vector. (Maximum 8 groups).

groupstack(A1, A2, A3=0, A4=0, A5=0, A6=0, A7=0, A8=0)

`A1`	Input k x m x n real array of the Procrustes transformed configurations, where k is the number of points, m is the number of dimensions, and n is the sample size.
`A2`	Input k x m x n real array of the Procrustes original configurations, where k is the number of points, m is the number of dimensions, and n is the sample size.
`A3`	Optional array
`A4`	Optional array
`A5`	Optional array
`A6`	Optional array
`A7`	Optional array
`A8`	Optional array

A list with components

`x`	The combined array of all configurations
`groups`	The group labels (integers)

Ian Dryden

Dryden, I.L. and Mardia, K.V. (2016). Statistical Shape Analysis, with Applications in R (Second Edition). Wiley, Chichester.

#2D example : female and male Gorillas (cf. Dryden and Mardia, 2016)

data(gorf.dat)
data(gorm.dat)

groupstack(gorf.dat,gorm.dat)

Statistical Shape Analysis

v1.2.6

GPL-2

Authors

Ian L. Dryden

Initial release

2021-03-30