oabin (gexpr, sexpr <,-flag>)
This function bins station observations into grid cells based on their location. If more than one station is located within a grid box, the observations are averaged together to produce the analyzed value.
gexpr  a valid grid expression
sexpr  a valid station data expression
flag may be one of the following:
-f    set the value to the first observation that gets binned
-c    output is the # of stations located within each grid cell
open grd_var.ctl open stn_var.ctl set gxout grfill d oabin(grd_var.1,stn_var.2) set gxout grid d oabin(grd_var.1,stn_var.2,-c)