search for: staturday

Hi there, I am having problem of matching string. what i want is when i type a date such as 2010-11-30, the function will return the day (monday, tuesday, wednesday, thursday, friday or staturday). then i want another function will return true if the return of the day is monday, return false if the return of the day is not monday. I already find the weekdays(as.Date('2010-11-30')) function which will tell me exactly what day its gonna be. however, i am having problem of return True...