No, there's no limit. You seem to be using NumericExtensions (check the error message carefully), which appears to overwrite the implementation of maximum in base. When I use base Julia, your example works for me.
--Tim On Thursday, May 01, 2014 11:38:49 AM Florian Oswald wrote: > is there anything like a maximum number of dimensions that are supported? > > I'm asking because I get this: > > A = rand(4,4,4,4,4) > maximum(A,5) > ERROR: no method contrank(Colon, Colon, Colon, Colon, Int64) > in _reducedimimpl! at > /Users/florianoswald/.julia/v0.3/NumericExtensions/src/reducedim.jl:174
