问题
I have a dataframe with courses ("courses") and the number of hours the course is teached for a year ("hours")
my problem is that for each course, i have to choose someone to teach it. every teacher have a profil which are either : "Perm", "Vac", "temp", "other" The amount of hours teach a year (the sum of all hours) must be given by at least :
90% of ("Perm" + "Vac" + temp), 50% of ("Vac"+ "temp") and 20% of "temp". Is it possible to have combinations of which profile should teach which course to match the requirements ?
my dataframe would look like that.
Course Hours combination1 combination2
course1 200 ? ?
course2 50 ? ?
course3 150 ? ?
course4 220 ? ?
course5 25 ? ?
in that exemple, at least :
129 hours should be teach by "temp" teachers
322,5 hours should be teach by "Vac" or "temp" teachers
580,5 hours should be teach by "Temp", "Vac" or "perm" teachers
Is it possible ?
来源：https://stackoverflow.com/questions/60614199/r-how-to-have-combinations-that-match-requirements