mir.ndslice: assign a vector to a matrix row
9il
ilyayaroshenko at gmail.com
Wed Dec 26 18:59:25 UTC 2018
On Saturday, 15 December 2018 at 19:04:37 UTC, David wrote:
> Hi
>
> I am wondering if it is possible to assign a vector to a row of
> a matrix?
>
> ============ main.d ==========
> import mir.ndslice;
>
> void main() {
>
> auto matrix = slice!double(3, 4);
> matrix[] = 0;
> matrix.diagonal[] = 1;
>
> auto row = matrix[0];
> row[3] = 4;
> assert(matrix[0, 3] == 4);
>
> // assign it to rows of a matrix?
> auto vector = sliced!(double)([10, 11, 12, 13]);
>
> // ??? Here I would like to assign the vector to the last
> (but it is not working)
> // matrix[2] = vector;
> }
> ============
>
> So I am wondering what the correct way is to do such an
> assignment without looping?
matrix[2][] = vector;
Or
matrix[2,0..$] = vector;
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