On Thursday, June 16, 2016 at 11:32:25 AM UTC-4, Yichao Yu wrote:
>
> On Thu, Jun 16, 2016 at 11:25 AM, Islam Badreldin
> <[email protected] <javascript:>> wrote:
> > Hi
> >
> > Is there an easy way to initialize an array of arrays in one statement?
> I
> > tried the following
>
> julia> Any[Float64[1, 2, 3], Float64[4, 5]]
> 2-element Array{Any,1}:
> [1.0,2.0,3.0]
> [4.0,5.0]
>
Great! I used to think that `,` and `;` are interchangeable. Now I see the
difference!
>
> >
> >> Any[ Float64[1,2,3]; Float64[4, 5] ]
> > 5-element Array{Any,1}:
> > 1.0
> > 2.0
> > 3.0
> > 4.0
> > 5.0
> >
> >> Any[ Float64[1,2,3] Float64[4, 5] ]
> > ERROR: ArgumentError: number of rows of each array must match (got
> (3,2))
> > in typed_hcat at abstractarray.jl:772
> >
> >
> > However, what I want to have is (achieved using `push!` in multiple
> > statements)
> >
> > 2-element Array{Any,1}:
> > [1.0,2.0,3.0]
> > [4.0,5.0]
> >
> > Thanks,
> > Islam
> >
>
-Islam
