Field help (AGRAREP) @ L.V. Expertise X3

This field can only be entered :

if the representation method chosen in the header is not Character.
on the numeric fields where a value will be displayed.

It is used to manage the graph combinations if the graphic type defined in the graphical parameters is used to make several series appear, independently of different types (it is ignored in other cases). In practice, the usable combinations are as follows :

Type = Multi graph, Default graph=Lines, Representation=Multi
Type = Multi graph, Default graph=Bars, Representation=Multi

The rule is as follows :

Defaultsignifies that the graphical presentation of the series corresponds to the default graph of the last tab (Bars, or Linesin this case).
Bar or Line is used to force the corresponding presentation method in question.