* Set a recurring frequency type among specific types (daily, weekly, monthly, and yearly). @n
* This property should be set before setting the day of recurrence. After setting the frequency, other properties are reset to default values. @n
* For weekly, the day of week must be set. @n
- * For monthly, the day of the week and the week of the month must be set. @n
- * For yearly, either the day of the month and the month of the year, or the day of the week, the week of the month, and the month of the year must be set.
+ * For monthly, either the day of the month or the day of the week and the week of the month must be set. @n
+ * For yearly, either the day of the month and the month of the year or the day of the week, the week of the month, and the month of the year must be set.
*
* @since 2.0
*