Or you can use an anonymous function
julia> filter(x->x!=0, A)
4-element Array{Int64,1}:
1
2
4
5
the `do` syntax is exactly equivalent, but more convenient when you have a
longer function body
julia> filter(A) do x
x != 0
end
4-element Array{Int64,1}:
1
2
4
5
Regards Ivar
kl. 16:18:05 UTC+1 mandag 3. november 2014 skrev João Felipe Santos
følgende:
>
> You just need to write a function that returns false for the elements you
> want to filter out. Here’s an example that does what you want:
>
> julia> myfilter(x) = x != 0
> myfilter (generic function with 1 method)
>
> julia> A = [1, 2, 0, 4, 5, 0]
> 6-element Array{Int64,1}:
> 1
> 2
> 0
> 4
> 5
> 0
>
> julia> filter(myfilter, A)
> 4-element Array{Int64,1}:
> 1
> 2
> 4
> 5
>
> > On Nov 3, 2014, at 10:15 AM, Zahirul ALAM <[email protected]
> <javascript:>> wrote:
> >
> > The documentation says:
> >
> > filter(function, collection)
> > Return a copy of collection, removing elements for which function is
> false. For associative collections,
> > the function is passed two arguments (key and value).
> >
> > how to write the fucntion? I am trying to get elements which are
> nonzero. Any Help is much appreciated!
>
>
