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2006 Oct 19
2
arraytake for extracting subarrays from multidimensional arrays
...useful. I haven't completely robustified it against all kinds of pathological inputs, but if there is any interest from the development team it would be nice to add an error-checked version of this to R (or I guess I could keep it in a package). Simple usage example: ------ > source("arraytake.R") > a <- array(1:24,c(2,3,4)) > a[,1:3,c(4,2)] ##This invocation requires hard coding the number of dimensions of a , , 1 [,1] [,2] [,3] [1,] 19 21 23 [2,] 20 22 24 , , 2 [,1] [,2] [,3] [1,] 7 9 11 [2,] 8 10 12 > arraytake(a,list(NULL,1...