Hi,

The new added xt::quantile seems not to play nicely with pytensor.

For me, the following :

xt::pytensor<double, 2> arr
 {{ 5.3, 4.3, 5.3 },
 { 4.2, 4.2, 5.2 },
 { 5.7, 4.7, 5.7 },
 { 2.3, 4.3, 2.3 }};
auto q = xt::quantile(arr, {0.3, 0.7}, 1);

raises :

~/xtensor/include/xtensor/xsort.hpp:463:31: error: non-constant-expression cannot be narrowed from type 'xt::xcontainer<xt::pytensor<double, 2, xt::layout_type::dynamic>>::size_type' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
R ev = R::from_shape({de.size()});

I am using xtl==0.7.5, xtensor==0.24.4, xtensor-python==0.26.1, pybind11==2.10.3.