[Octave-bug-tracker] [bug #49019] some function fail when DIM>=3 and size(X, DIM)==1

[Joakim Andén]

Follow-up Comment #2, bug #49019 (project octave):

Looking at the MATLAB behavior for these functions


>> A

A =

   3.578396939725760  -1.349886940156521
   2.769437029884877   3.034923466331855

>> fft(A, [], 3)

ans =

   3.578396939725760  -1.349886940156521
   2.769437029884877   3.034923466331855

>> mean(A, 3)  

ans =

   3.578396939725760  -1.349886940156521
   2.769437029884877   3.034923466331855

>> diff(A, 1, 3)

ans =

   Empty array: 2-by-2-by-0


so identity for "fft" and "mean", while empty matrix for "diff". However,
Octave gives errors for each of those calls. Similar discrepancies are there
for "mode", "median", and others. For the sake of compatibility, it would be
good to copy this behavior. I would be willing to make the necessary changes
if there is interest in changing this.

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