Conversion from string to matrix

[stevengj]

@HanD

If you want to persist data so that it can be used later, and you don’t care about human readability, then the easiest option is to use the Serialization library:

You can also just use comma-delimited text, e.g. via the DelimitedFiles library or several other libraries:

julia> using DelimitedFiles

julia> writedlm("cpx.csv", [1.0 + 1.0im 1.0 + 0.0im; 5.0 + 0.0im 0.0 + 0.0im], ',')

julia> readdlm("cpx.csv", ',', ComplexF64)
2×2 Matrix{ComplexF64}:
 1.0+1.0im  1.0+0.0im
 5.0+0.0im  0.0+0.0im

These have the advantage of being more human-readable and more portable across Julia versions.

See also the discussion thread: Saving an array of complex numbers