Several solutions : SET MODE/LAST VERIFY yes? let AA=I[I=1:10]*J[J=1:20] yes? stat aa I[I=1:10]*J[J=1:20] X: 0.5 to 10.5 Y: 0.5 to 20.5 Z: N/A T: N/A E: N/A F: N/A DATA SET: N/A Total # of data points: 200 (10*20*1*1*1*1) # flagged as bad data: 0 Minimum value: 1 Maximum value: 200 Mean value: 57.75 (unweighted average) Standard deviation: 46.912 yes? say `aa,return=isize`, `aa,return=jsize` 10, 20 yes? And probably a few others Olivier -- Laboratoire des Sciences du Climat et de l'Environnement Institut Pierre Simon Laplace Laboratoire CEA-CNRS-UVSQ - UMR 8212 Tel : +33 1 69 08 77 27 - Mob : +33 6 45 36 43 74 Fax : +33 1 69 08 30 73 |