Use this to specify data for a plot of normal confidence ellipses for bivariate data.
- After you have imported your data, from the menu select
Graphics | Confidence Region Plot. - Fill in the fields as required then click Run.
You can set additional options by clicking Options.
After you have selected the data you can draw the graph by clicking Run. You can set additional options and axis settings by clicking the Options, Symbols, Key X Axis, Y Axis and Frame tabs.
Type of plot
You can specify how your data is formatted by selecting the appropriate type of plot. When an item is selected the fields will change on the menu. You can select from:
- Single XY
- Multiple X & single Y
- Multiple Y & single X
- Paired XY
Available data
This lists data structures appropriate to the current input field. It lists either factors or variates for specifying the data. The contents will change as you move from one field to the next. Double-click a name to copy it to the current input field or type the name.
Y variate(s)
Specifies the y-coordinates of the points to be plotted. Double-click a name in the Available data field to copy it across or type the name. For a plot including multiple y variates you can transfer multiple selections from Available data by holding the Ctrl key on your keyboard while selecting items, then click 
to move them all across in one action.
X variate(s)
Specifies the x-coordinates of the points to be plotted. Double-click a name in the Available data field to copy it across or type the name. For a plot including multiple x variates you can transfer multiple selections from Available data by holding the Ctrl key on your keyboard while selecting items, then click to move them all across in one action.
Groups (only for Single XY)
Use this to specify a factor indicating that the points are partitioned into different groups. The groups will then be identified on the plot by using different Genstat pens (where the pen number is given by the corresponding level of the factor). As a result, different colours will be used for units belonging to different groups. Double-click a name in the Available data field to copy it across or type the name. Clicking button will move the selected factor to the field.
Action buttons
| Run | Produce the graph. |
| Cancel | Close the menu without further changes. |
| Defaults | Reset the options to their default settings. |
Action Icons
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Pin | Controls whether to keep the dialog open when you click Run. When the pin is down the dialog will remain open, otherwise when the pin is up  the dialog will close. |
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Restore | Restore names into edit fields and default settings. |
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Clear | Clear all fields and list boxes. |
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Help | Open the Help topic for this dialog. |