Function approx2 

pub fn approx2<T, P>(
    input: &Array<T>,
    pos0: &Array<P>,
    pos1: &Array<P>,
    method: InterpType,
    off_grid: f32,
) -> Array<T>
where
    T: HasAfEnum + FloatingPoint,
    P: HasAfEnum + RealFloating,

Perform signal interpolation for 2d signals

Parameters

• input is the input Array
• pos0 Array contains the interpolation locations for first dimension
• pos1 Array contains the interpolation locations for second dimension
• method indicates the type of interpolation method that be used. It is of type enum InterpType
• off_grid is the value that will set in the output Array when certain index is out of bounds

Return Values

An Array with interpolated values