x <- array(1:30, c(4,5,3))
x[1,,]
How can I do the same thing with do.call?
do.call("[", list(x, 1)) == x[1]
do.call("[", list(x, 1, NULL, NULL)) == x[1, NULL, NULL]
I guess you can't, because of the special way that [ deals with arguments.
How can I index an array programmatically for arrays and indices of
varying dimensionality?
Thanks,
Hadley
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