Writing array to file with format

[stevengj]

@Andres_Legarra

I am aware of Printf and of @printf and of @sprintf and of this thread How to repeat the format in @printf? but I have not been able to find a neat solution or a clear example that would not involve joins, broadcasting functions, etc. Am I missing something?

What’s wrong with a loop?

for i = axes(A, 1)
    for j = axes(A, 2)
        @printf(io, "%9.5f", A[i,j])
    end
    println(io)
end

@Andres_Legarra

(contrary to python or fortran) write does not directly accept formats (or I couldn’t find how).

write in Julia is for raw binary output, not for text representations of numeric data.