public static int median(Collection<?> inputList, String propertyPath) {
        return IntList.toIntList(inputList, propertyPath).median();
    }
public static int median(Collection<?> inputList, String propertyPath) {
        return IntList.toIntList(inputList, propertyPath).median();
    }
public static int median ( Collection < ? > inputList , String propertyPath ) { return IntList . toIntList ( inputList , propertyPath ) . median ( ) ; }
Calculate standard deviation.

@return standard deviation
Calculate standard deviation .