I have seen that Julia adequately interprets "MAT" files which have structures in them which are read as dictionaries without problem. Now I have created a dictionary of my own, which has the following structure
(String, String)=> [ Int, Int, Int]
on each entry. I can save it with writedlm and it produces a very orderly
tabular text file, separated by tabs (\t), but then I cannot retrieve it without doing a LOT of parsing. If I use readdlm I get an array of type Any, with the very uncomfortable structure at each line
"(\"Bla bla\", \"tururu\")" "[a, b, c]"
That is, two columns of Strings which contain signs such as '"' and '['.
You could use the JLD2 (Julia Data Version 2) package:
Pkg.add("JLD2")
using JLD2
d = Dict(
("a", "b") => [1, 2, 3],
("c", "d") => [4, 5, 6],
("e", "f") => [7, 8, 9]
)
save("data.jld2", "data", d)
load("data.jld2")["data"]
the advantage of the JLD2 module is that it preserves the exact type information of each variable.