CODEWITHSUNDEEP
julia
Luca
Luca

Reputation: 10996

computing mean over a dimension in Julia

I just downloaded Julia 1.0 and been trying to play with it. One annoying thing is that most of the examples that I found online deal with version 0.6 and it seems it is a big change between the versions.

So I am trying to compute the mean along a particular dimension of a matrix. I do the following:

a = rand(10, 5)

Now I can do

mean(a)

but not: 

mean(a, 1)

Looking at the question here: Mean Row of Matrix, it seems that this was working in the older versions. What is the Julia 1.0 way of doing this?

Upvotes: 6

Views: 2569

Answers (1)

fredrikekre
fredrikekre

Reputation: 10984

The second argument to mean (and several other similar functions) became a keyword argument in Julia v0.7 and above. You should use

mean(a, dims = 1)

See also: https://discourse.julialang.org/t/psa-use-julia-0-7-if-you-are-upgrading/13321

Upvotes: 7

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