search for: block_averaging

...,sum) for step b I use apply with the result of a and a function block_average block_average <- funcition(value,year,number_of_years_to_average) with the parameters value and years as vectors and number_of_years as integer. When I'm trying to skip the spatial aggregation, i.e. just do the block_averaging over years, I have the problem (AFIU the man page), that I can't provide the years vector as parameter to the function block_average via tapply. What would be the R-ish approach to this problem. TIA joachim heidemeier -- Dr. Joachim Heidemeier c/o Umweltbundesamt FG II 2.2 Tel.: +49340 2103...