Subset landmark coordinates via a factor
Subset (split) landmark coordinates via a grouping factor
coords.subset(A, group)
A |
A 3D array (p x k x n) containing landmark coordinates for a set of specimens |
group |
A grouping factor of length n, for splitting the array into sub-arrays |
This function splits a set of landmark coordinates into subsets, as described by a factor. The result is a list of separate sets of landmarks.
Michael Collyer
data(pupfish) group <- factor(paste(pupfish$Pop, pupfish$Sex)) levels(group) new.coords <- coords.subset(A = pupfish$coords, group = group) names(new.coords) # see the list levels # group shape means lapply(new.coords, mshape)
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.