gpmaxmin - printing maximum and minimum values of a GPhys variable.


% gpmaxmin [options] path[@|/]varname[,dimname=pos1[:pos2[:thinning_intv]][,dimname=...]]


-h,      --help     : Print this message. 
-n,      --number   : Number of displayed points having max and min values.
-a,      --all      : All points are displayed.
-i,      --index    : Indicies of max and min points are displayed.


2005/05/17  S Takehiro (created)
2005/07/15  S Takehiro (open_gturl method is used for opening gphys variable)
2005/08/07  S Takehiro (parse_gturl removed)
2005/08/10  S Takehiro (locations having max and min values are displayed.
                        utilize internal function for printing help message.
                        --all, --index, --number options added.)
2005/08/23  S Takehiro (common methods to gp* command moved to gpcommon.rb)
2006/03/07  M Nakano (USAGE Typo fixed)
2010/03/10  Y SASAKI (change help block into RD format)
2012/02/19  S Takehiro (description for gturl format updated)