cumwsum# swordfish.function.cumwsum()# Calculate the cumulative weighted sum of X with Y as the weights. Parameters: X (Constant) – A scalar/vector/matrix/table/tuple (with scalars or equal-length vectors)/dictionary. Y (Constant) – A scalar/vector/matrix/table/tuple (with scalars or equal-length vectors)/dictionary. Returns: A vector of the same length as X. Null values are ignored in the calculation. Return type: Constant