polars_arrow::legacy::kernels::rolling::nulls

Function rolling_var

Source 
pub fn rolling_var<T>(
    arr: &PrimitiveArray<T>,
    window_size: usize,
    min_periods: usize,
    center: bool,
    weights: Option<&[f64]>,
    params: Option<RollingFnParams>,
) -> ArrayRef
where
    T: NativeType + Sum<T> + Zero + AddAssign + SubAssign + IsFloat + Float,