Mojo function

variance

variance(src: LayoutTensor[dtype, layout, origin, address_space=address_space, element_layout=element_layout, layout_int_type=layout_int_type, linear_idx_type=linear_idx_type, masked=masked, alignment=alignment], correction: Int = 1) -> Scalar[dtype]

Computes the variance value of the elements in a buffer.

variance(x) = sum((x - E(x))^2) / (size - correction)

Args:

src (LayoutTensor): The buffer.
correction (Int): Normalize variance by size - correction (Default=1).

Returns:

Scalar: The variance value of the elements in a buffer.