> > > I could use an array, but one product can correspond to different number > of bases. > > That's why I decided to use tuples. > > You could use an Array of (different length) Arrays, similar to Array of Tuples.
Another strategy might be to construct a vector of (Product, Base) pairs,
and then iterate over this vector:
product_bases = Tuple{ProductType, BaseType}[]
for k in Products, b in Bases
if accordance[k,b]
push!(product_bases, (k,b))
end
end
for (k,b) in product_bases
...
end
