Try the following: b = [a[i]::Int64 for i=1:3]
This is hinting the type, see http://docs.julialang.org/en/latest/manual/performance-tips/#annotate-values-taken-from-untyped-locations -Jacob On Fri, Feb 14, 2014 at 12:04 PM, Nico <[email protected]> wrote: > 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? >
