I wrote a program that works fine but has several hard-coded types (Float64, etc.) which I’m now trying to get rid of, because they get in the way of automatic differentiation. I’ve hit a snag with the following: I initialise a matrix before a for loop, and then fill it one row at a time. My origin…

If you know that your matrix will have a type which matches some function input, then you can use that: julia> function build_matrix(x) out = Matrix{typeof(x)}(undef, 2, 2) for i in 1:2 out[:, i] .= x end out end build_matrix (generic function w…

Initialise array without specific types

General Usage Performance

Tamas_Papp April 29, 2021, 8:04am 4

The first thing I try in these situations is work around this by using a functional style (mapreduce etc) that figures out the type itself. But without an MWE it is hard to suggest something specific.