function processGroup(array &$aArgs)
{
    $sSeriesGroup = WWWUtility::validateArg($aArgs, 'name', "/^(temp|prec|baro|humid|wind)/");
    switch ($sSeriesGroup) {
        case 'temp':
            return json_encode(Rosenberg::getTemperatureSeries());
        case 'prec':
            return json_encode(Rosenberg::getPrecipationSeries());
        case 'baro':
            return json_encode(Rosenberg::getBarometerSeries());
        case 'humid':
            return json_encode(Rosenberg::getHumiditySeries());
        case 'wind':
            return json_encode(Rosenberg::getWindSeries());
    }
}