size(m, 1) — counts _over_ rows

sum(m, 1) — sums _over_ rows

So no mixup, just a different perspective than you’re taking right now.

My best advice: discard everything you know about R while using Julia. If 
you’ve used Matlab, that will be much more useful as an analogy for how Julia 
works.

 — John

On Oct 26, 2014, at 4:59 AM, Justas _ <[email protected]> wrote:

> I am a bit confused. Take a look:
> 
> size(m, 1) # returns size of rows
> size(m, 2) # returns size of columns
> 
> sum(m, 1) # sums columns
> sum(m, 2) # sums rows
> 
> Also, I have R background, and there 1 is used for rows, 2 - for columns.
> 
> Why Julia mixes this up?

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