Stepping thru a matrix

General Usage
1

I’m just wondering if there is a easier / better way to step thru the elements of a 10x2 matrix, where I want to get each part of the x2 as an element:

testmatrix = zeros(Int,10,2)
for tidx = 1:size(testmatrix)[1]
       t1 = testmatrix[tidx,1]
       t2 = testmatrix[tidx,2]
       println("t1 = $t1 t2 = $t2")
end

In this admittedly dumb example, I want to treat each part of the “x2” as a 2 element vector.

2

One way:

julia> M = rand(0:9, 10, 2)
10×2 Matrix{Int64}:
 7  1
 6  0
 6  0
 6  9
 8  3
 9  1
 4  9
 1  5
 2  5
 9  9

julia> for i in axes(M, 1)
           println(M[i, :])
       end
[7, 1]
[6, 0]
[6, 0]
[6, 9]
[8, 3]
[9, 1]
[4, 9]
[1, 5]
[2, 5]
[9, 9]
3

eachrow?

julia> A = rand(5,2)
5×2 Matrix{Float64}:
 0.535485  0.39958
 0.185981  0.821799
 0.699819  0.355746
 0.796002  0.640743
 0.761191  0.513014

julia> collect(eachrow(A))
5-element Vector{SubArray{Float64, 1, Matrix{Float64}, Tuple{Int64, Base.Slice{Base.OneTo{Int64}}}, true}}:
 [0.5354849094718778, 0.3995795322090717]
 [0.1859805121916167, 0.8217989381641213]
 [0.6998186399284567, 0.35574632769553527]
 [0.7960020715211013, 0.6407429528950367]
 [0.7611912194497008, 0.5130138680605387]
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