To make, 2d array with list comprehesion, i write this:
array = [f(i) for in 1:length]
at this, function f returns 1-d list. But at the result as nested array.... How can i create 2d array with list comprehension?
The example of 2d dimension is like this:
julia> A
2×3 Array{Float64,2}:
0.0194681 0.195811 0.150168
0.398199 0.544672 0.942663
Since your f already returns a vector (I assume you refer to this type when you write "1-d list") then it is not possible to create a matrix using a comprehension (unless you want to write f(i)[j] in the example of Przemyslaw which will be inefficient).
What you should do is:
reduce(hcat, [f(i) for i in 1:len])
to get a matrix whose columns are the values returned by f(i).
Here it is:
julia> [x*y for x in 1:5, y in 1:3]
5×3 Array{Int64,2}:
1 2 3
2 4 6
3 6 9
4 8 12
5 10 15