The Rows drop-down list allows you to specify which rows of data are graphed at any one time:
Setting  | 
Meaning  | 
|---|---|
All  | 
Graphs the data from all the rows that have been retrieved but not filtered or deleted (that is, the rows in the primary buffer of the DataWindow object)  | 
Page  | 
Graphs only the data from the rows that are currently displayed on the page  | 
Group n  | 
Graphs only the data in the specified group (in a grouped DataWindow object)  | 
If you select Group
If you are graphing data in the current group in a grouped DataWindow object and
have several groups displayed at the same time, you should localize
the graph in a group-related band in the Design view. This makes
clear which group the graph represents. Usually, the group header
band is the most appropriate band.