I have a table with 3 collums: the first collum are dates over 4 years. The second and third collum are vallues of temperature and flowrate of a river for te corresponding date. The Temperature has some NaN's in the data. Nan's have to be ignored
I want to calculate the average temperature and flowrate on each day over this years. So I get a new table (365x3) with each date of the year with these avarage values.
Can someone help me to achive this please?