What is the equivalent in xtensor or the most optimized way to write a vector to an array.
Thanks
import numpy as np
array = np.zeros((4, 4))
array[0] = np.array([1, 2, 3, 4]) # this
The easiest way is
#include <xtensor/xtensor.hpp>
#include <xtensor/xarray.hpp>
#include <xtensor/xview.hpp>
#include <xtensor/xio.hpp>
int main()
{
xt::xtensor<double, 2> array = xt::xtensor<double>({4, 4});
xt::xtensor<double, 1> row = {1, 2, 3, 4};
xt::view(array, 0) = row;
return 0;
}
You can use xt::xarray
for flexibility, but it is less efficient.