A variable group is a user-defined category of related variables. For example, you could group all VAX-related variables into a variable group named VAX_VARS or all variables relating to voice processing into a group named VOX_GRP.
A variable group contains both volatile and non-volatile (disk-based) variables. The .glv files containing non-volatile variables have the same names as their associated variable groups. For example, non-volatile variables in a group named REMGROUP are stored in a file named REMGROUP.glv.
The global variable environment regards variables that have the same name but belong to different groups as separate variables. Such variables can contain different values.
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