private NDArray setValue <T>(NDArray indexes)
{
Shape newShape = new int[] { indexes.size }.Concat(shape.Skip(1)).ToArray();
var buf = Data <T>();
var idx = indexes.Data <int>();
var array = new T[newShape.Size];
var indice = Shape.GetShape(newShape.Dimensions, axis: 0);
var length = Shape.GetSize(indice);
for (var row = 0; row < newShape[0]; row++)
{
var d = buf.AsSpan(idx[row] * length, length);
d.CopyTo(array.AsSpan(row * length));
}
var nd = new NDArray(array, newShape);
return(nd);
}
