10.20.24     MXG2Z: Expand (De-compress) a “group” matrix back to a zonal matrix

MXG2Z  matg  matz  FILZ2G

Expands (de-compresses) a “group-to-group” matrix matg.ufm into a “zone-to-zone” matrix matz.ufm based on the grouping of zones into groups defined either by the file FILZ2G (optional; default extension .Z2G) or using the pre-defined zone-to-group mapping in matg (recommended). The assumption is that matg.ufm has previously been compressed from a zone-to-zone matrix using MXZ2G according to the same zonal groupings in FILZ2G.

Note: MXG2Z sets all intra-zonals to zero. See also 10.2.5.5 and 10.16.5.