Convert a three-dimensional array of landmark coordinates into a 2-dimensional matrix

1 | ```
two.d.array(A)
``` |

`A` |
An array (p x k x n) containing landmark coordinates for a set of specimens |

This function converts a (p x k x n) array of landmark coordinates into a 2-dimensional matrix. 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

1 2 3 4 | ```
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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