def _print_removed_output(original, new, function):
    """
    function printing the output of functions that tag datapoints.

    Parameters
    ----------
    original : int
        original length of the dataset
    new : int
        length of the new dataset
    function : str
        info on the function used to filter the data

    """
    print(str(original - new) +
        ' values detected and tagged as filtered by function ' + function)
