groupstack function

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)

Arguments

• 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

Returns

A list with components - x: The combined array of all configurations

• groups: The group labels (integers)

References

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

Author(s)

Ian Dryden

See Also

procGPA

Examples

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

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

groupstack(gorf.dat,gorm.dat)