It took me a long time to understand R's dimension indication, coming
myself from octave before R. I think I never really got used to it, I
always need to think twice in R. My way of remembering the R semantics is
that the dimensions indicate the dimensions that you are left with after
the op
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.
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?
