public void setPeriodRange(String periodRange) {
        System.out.println("*****Setting Period Range to " + periodRange);
        parseRange pr = new parseRange();
        boolean[] range_tmp = pr.getArray(periodRange, 13);
        this.periodMask = new boolean[12];
        for (int i = 0; i < 12; i++) {
            this.periodMask[i] = range_tmp[i + 1];  // convert from 1-12 to 0-13.
        }
    }