search for: monthmean

...rst contains months, for example, for times.ind[1] I get a list of day numbers which are from January. (so 1:30, 361:390 etc) The other list does the same for years times.ind2[1] gives the days 1:360 It is now possible for me to create for example monthly averages for each grid cell ##CODE## pr.monthmean <- sapply(times.ind, function(x,arr) rowMeans(arr[,,x],dims=2), arr = pr) ## END CODE## the same can be done for yearly averages. However, I would like to create a matrix with monthly averages for each year separately. I think I need to couple times.ind and times.ind2 in some way, but I d...