When I build an array using a comprehension as follows:
a = [i for i=1:3]
its type is 3-element Array{Int64,1}.
However, when I build a second array as:
b = [a[i] for i=1:3]
its type is 3-element Array{Any,1} instead of Array{Int64,1}.
How can I build b so that it preserves the type of a?
