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Mojo function

variance

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

Computes the variance value of the elements in a buffer.

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

Args:

src (LayoutTensor[address_space=src.address_space, element_layout=src.element_layout, layout_int_type=src.layout_int_type, linear_idx_type=src.linear_idx_type, masked=src.masked, alignment=src.alignment]): The buffer.
correction (Int): Normalize variance by size - correction (Default=1).

Returns:

Scalar[src.dtype]: The variance value of the elements in a buffer.

Raises:

May raise on GPU targets when a device error occurs.

def variance(src: TileTensor[Storage=src.Storage, address_space=src.address_space, linear_idx_type=src.linear_idx_type], correction: Int = Int(1)) -> Scalar[src.dtype]