search for: mean_typ_year

...nt types. For example: For all days in the year 1950 with the typ 1, I would like to write the mean value for Typ 1 in year 1950. In year 1951 I would like to write the mean value for typ 1 in 1951 etc. (for all 18 types) The output should look like as following: erg a m d typ value mean_typ_year 1950 1 1 1 -4.1 0,4 1950 1 2 2 2.7 Mean (Typ2 1950) 1950 1 3 1 -1.3 0,4 1950 1 4 5 -1.9 Mean (Typ5 1950) 1950 1 5 2 0.2 ... 1950 1 6 8 0.5 ... 1951 1 1 1 1.3 -0,17 1951 1 2 2 2.1...