Hi Tim,
Thanks for the tip. Very interesting. In function definition it works. I
read the parametric-composite-types manual. I am still puzzled however.
Consider the example below which works as I expect:
a = rand(10)
b = rand(10,2)
julia> a :: VecOrMat{Float64}
10-element Array{Float64,1}:
...
julia> b :: VecOrMat{Float64}
10x2 Array{Float64,2}:
...
The following example does not work as I would expect:
a = Vector{Float64}[rand(10), rand(10)]
b = Matrix{Float64}[rand(10,2), rand(10,2)]
julia> a :: Vector{VecOrMat{Float64}}
ERROR: type: typeassert: expected
Array{Union(Array{Float64,1},Array{Float64,2}),1}, got
Array{Array{Float64,1},1}
julia> b :: Vector{VecOrMat{Float64}}
ERROR: type: typeassert: expected
Array{Union(Array{Float64,1},Array{Float64,2}),1}, got
Array{Array{Float64,2},1}
however, this:
julia> a :: Vector{Vector{Float64}}
2-element Array{Array{Float64,1},1}:
...
and this works:
julia> b :: Vector{Matrix{Float64}}
2-element Array{Array{Float64,2},1}:
...
Thanks,
Jan
Dňa utorok, 28. apríla 2015 13:13:36 UTC+2 Tim Holy napísal(-a):
>
>
> http://docs.julialang.org/en/release-0.3/manual/types/#parametric-composite-types
>
>
> Use foo{V<:VecOrMat}(X::Vector{V})
>
> --Tim
>
> On Tuesday, April 28, 2015 02:40:41 AM Ján Dolinský wrote:
> > Hi guys,
> >
> > I am trying to write a function which accepts as an input either a
> vector
> > of vectors or a vector of matrices e.g.
> >
> > function foo(X::Vector{VecOrMat{Float64}})
> >
> > When running the function with a vector of matrices I get the following
> > error " 'foo' has no method matching foo(::Array{Array{Float64,2},1})"
> >
> > Am I missing something here ?
> >
> > Thanks,
> > Jan
>
>
