def load_csv_rrs(filepath, sep=','):
    """ Read data in from given filepath and return a list of integer RRs points. 

    :param filepath: (str) abosolute or relative path to file containing RRs
    :param sep: (str) separator between RR numbers [default: newline]
    :return rrs: (list) integers
    """
    values = []
    for item in open(filepath).read().split('\n'):
        try:
            values.append(float(item.split(sep)[0]))
        except (ValueError, TypeError, IndexError):
            pass
    return values
