blockmean - filter to block average (x,y,z) data by L2 norm blockmean [ xyz [ w ] file ( s ) ] -I x _ inc [ m|c ][/ y _ inc [ m|c ]] -R west / east / south / north [ r ] [ -H [ nrec ] ] [ -N ] [ -V ] [ -W [ io ] ] [ -: ] [ -bi [ s ][ n ] ] [ -bo [ s ] ] blockmean reads arbitrarily located (x,y,z) triples [or optionally weighted quadruples (x,y,z,w)] from standard input [or xyz [ w ] file ( s )] and writes to standard ... Default is (longitude,latitude)]. -bi Selects binary input. ...