First non-singleton dimension
Given an array, returns the first non-singleton dimension. Useful for emulating some of Matlab / Octave's multidimensional functions.
If n is supplied, return the first n nonsingleton dimensions.
fnsd(a,n)
a |
An array |
n |
Integer. Return the first |
Returns an integer vector with elements in the range 1 to
length(dim(a)).
Treats zero-extent dimensions as singletons.
Case n=0 now treated sensibly (returns a zero-length vector).
Robin K. S. Hankin
a <- array(1:24,c(1,1,1,1,2,1,3,4)) fnsd(a) fnsd(a,2)
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