Ah, yes you are right about the Array{Int, 2} stuff.
The reason I want to do this at all is because I have functions taking
Vectors as arguments but then I have to create the vectors that I want to
pass into the function using the Array command. It would somehow feel more
unified if I could create my Vectors with the Vector command and pass them
into my function that accepts a Vector. Vectors everywhere :)
Thank you for your help.
On Wednesday, February 4, 2015 at 11:08:55 AM UTC+1, Milan Bouchet-Valat
wrote:
>
> Le mercredi 04 février 2015 à 02:00 -0800, Kristoffer Carlsson a écrit :
>
> If you want to allocate an Array you can simply write:
>
>
>
> julia> Array(Int, 5, 1)
> 10x1 Array{Int64,2}:
> 2187293504
> 2151034912
> 2195818528
> 2147516504
>
>
>
> Now, Vector is a short form for Array{T, 1}. I would then expect to be
> able to allocate a vector using something like this:
>
>
>
> julia> Vector(Int, 5)
> ERROR: MethodError: `convert` has no method matching convert(::Type{Array{
> T,1}},
> ::Type{Int64}, ::Int64)
> This may have arisen from a call to the constructor Array{T,1}(...),
> since type
> constructors fall back to convert methods in julia v0.4.
> Closest candidates are:
> convert{T}(::Type{Nullable{T}}, ::T)
> convert{T}(::Type{T}, ::T)
> convert{T}(::Type{FloatRange{T}}, ::FloatRange{T<:FloatingPoint})
> ...
>
>
>
> Could someone help me with the syntax? Do you have to use the Array form
> every time you want to initiate a Arrat{T,1} with a certain length?
>
> As you can see from the printed output, Array(Int, 5, 1) creates an
> Array{Int, 2}, which is different from a Vector. If you want a Vector, call
> Array(Int, 5). I've often tried typing Vector(Int, 5) too, and wished it
> existed, but as it would be redundant with Array(), I'm not sure it's a
> good idea to add it.
>
> Regards
>
