MXZ2G matz matg (FILZ2G
Compresses a “zone-to-zone” matrix matz.ufm into a “group-to-group” matrix matg.ufm according to the grouping of zones into “groups” defined either by the optional file FILZ2G (default extension .Z2G) or using the pre-defined zone-to-group mapping in matz.ufm. See 10.2.5.5 and 10.16.4.