deltas# swordfish.function.deltas()# For each element Xi in X, return Xi-Xi-n, representing the differences between elements. Parameters: X (Constant) – A vector, matrix or table. n (Constant, optional) – An integer specifying the step to shift when comparing elements in X. The default value is 1, meaning to compare the current element with the adjacent element at left. Returns: A vector/matrix/table with the same shape as X. Return type: Constant
