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 VARIABLES 
 
 

There are two kinds of variables in the macro language :
o User variables that are handled in macros
o Contexts that hold the different internal states of the program
In all cases, variable names are case insensitive.

User variables :
	can be set :
	set a = 3
	evaluated :
	$a	(directly)	($a+3)	(or in expressions)
Variables are usually lcal to a macro (or a formbox), unless 
specified :
	set b := 4
	creates a variable $b that can be evaluated anywhere, (static and 
global)
Associative array can be built with the syntaxe :
	set array["abc"] = 5
	Associative arrays can be linked to dbm data file (see DBMOPEN)
User variables can also be UNSET (rmoved from the memory)
The total number of user vatiables is limited, as given by the 
CONFIG command

On the other hands, contexts can only be evaluated, but not set:
	if ($dim != 2) ....
	see CONTEXTS for the list of all the context variables

see also : CONFIG CONTEXTS DBOPEN FUNCTIONS MUNSET SET UNSET

 
 VERBOSE 
 
 

When this context is set to 1 the program  switches to a more 
verbose mode. Specially, text output will be generated during macro 
execution, during MaxEnt run and during LP execution. When verbose 
equals to 0, no text is generated.
 

see also : DEBUG

 
 VERT 
 
 

vert  i j
In 3D mode, extract a column orthogonal to the last displayed plane.
The column is taken at coordinates i and j in this plane.

see also : COL DIM PLANE planeint ROW vertint

 
 vertint 
 
 

 interactive
 permits to choose verts interactively on a 3D by clicking on the 2d plane

see also : COL colint ph2dc planeint ROW rowint

 
 VHEIGHT 
 
 

This context is used when displaying or plotting 1D spectra, it 
determines the level at which the zero value will be displayed in 
the window. Values are in %, i.e. 0 corresponds to  the bottom line 
and 1 to the top. Default value is 0.3

see also : DISP1D PLOT

 
 vi 
 
 

as in unix

 

see also : CD ls more pwd rm SH vim vip

 
 vim 
 
 

open with vi a macro in the standard place
 i.e. in /usr/local/gifa/macro/

 

see also : CD ls more pwd rm SH vi vip

 
 vip 
 
 

open with vi a macro in the $HOME/macro directory

 

see also : CD ls more pwd rm SH vi vim