search for: omitgroupingfactor

...e BOTH the max z-value in a grid cell and the number of z-values in that cell. gsummary is supposed to be able to use a list a functions as input to FUN, but I am having trouble coding it correctly. Here is what I came up to so far. gr<-gsummary(xyz.packet,FUN=list(numeric=max,numeric=length),omitGroupingFactor=T,form=~X/Y) The help for the function gives no examples using multiple functions as a FUN value, so the help pages haven't been overly useful in this case. Thanks in advance, Mike Mike R. Saunders Forest Biometrician Cooperative Forest Research Unit University of Maine 5755 Nutting Hall Oro...