Generic NuPIC anomaly / usage questions

Engineering NuPIC
6 
 Map<String, Map<String, Object>> fieldEncodings = setupMap(
            null,
            0, // n
            0, // w
            0, 0, 0, 0, null, null, null,
            "stamp", "datetime", "DateEncoder");

fieldEncodings.get("stamp").put(Parameters.KEY.DATEFIELD_PATTERN.getFieldName(), "YYYY-MM-dd HH:mm:ss");
fieldEncodings.get("stamp").put(Parameters.KEY.DATEFIELD_DOFW.getFieldName(), new Tuple(1, 1.0)); // Day of week
fieldEncodings.get("stamp").put(Parameters.KEY.DATEFIELD_TOFD.getFieldName(), new Tuple(21, 9.5)); // Time of day