Concatenating an arbitrary number of matrices horizontally with `mortar`

[EssamWisam]

I know I can do

a = randn(3, 3)
mortar((a, a, a))

However, in my case, a is not defined in the code, it's arbitrarily generated from a function that I will call many times. For instance, consider

f(a) = a

I tried both of these and neither seems to work

mortar(([f(a) for i in 1:3]...))
mortar(tuple([f(a) for i in 1:3]))

[jishnub]

You're not constructing the Tuple correctly. In any case, your test function should return a matrix, and not an integer.

This should work:

julia> f(a) = fill(a,2,2)
f (generic function with 1 method)

julia> Tuple([f(i) for i in 1:3])
([1 1; 1 1], [2 2; 2 2], [3 3; 3 3])

julia> mortar(Tuple([f(i) for i in 1:4]))
1×4-blocked 2×8 BlockMatrix{Int64}:
 1  1  │  2  2  │  3  3  │  4  4
 1  1  │  2  2  │  3  3  │  4  4