Convert (p x k x n) data array into 2D data matrix
Convert a three-dimensional array of landmark coordinates into a two-dimensional matrix
two.d.array(A, sep = ".")
A |
A 3D array (p x k x n) containing landmark coordinates for a set of specimens |
sep |
An optional argument for variable labeling, combining landmark labels (e.g., 1, 2, 3, ...)
and partial dimension labels (e.g., "x", "y", and "z"), much like the |
This function converts a (p x k x n) array of landmark coordinates into a two-dimensional matrix (n x [p x k]). The latter format of the shape data is useful for performing subsequent statistical analyses in R (e.g., PCA, MANOVA, PLS, etc.). Row labels are preserved if included in the original array.
Function returns a two-dimensional matrix of dimension (n x [p x k]), where rows represent specimens and columns represent variables.
Dean Adams and Emma Sherratt
data(plethodon) plethodon$land #original data in the form of 3D array two.d.array(plethodon$land) # Convert to a 2D data matrix
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