Polar Plot

Select menu: Graphics | Polar Plot

Use this to specify data for a polar plot, where the x-values are plotted as angles around a circle (for a given modulus or period) and the y-values are give the distance from the centre of the circle (the amplitude).

After you have imported your data, from the menu select
Graphics | Polar Plot.
Fill in the fields as required then click Run.

You can set additional options and axis settings by clicking the Options, Lines and Symbols, Key, X Axis, Y Axis and Frame tabs. Note, the Y axis can be transformed by setting the transformation on the Y axis tab, but the transformation of the X axis is ignored. Some other aspects of the axes tabs are also ignored in the plot.

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. You can select from:

Single XY
Multiple Y & Single X
Multiple X & Single Y
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) (amplitude)

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. Set the choice of plotting method, symbols and colours for each variate on the Lines and Symbols tab.

X variate(s) (angle)

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. Set the choice of plotting method, symbols and colours for each variate on the Lines and Symbols tab.

Groups

This can be used to specify a factor indicating that the points are partitioned into different groups. but only for a Single XY. 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. Set the choice of plotting symbols and colours for each group on the Lines and Symbols tab.

Action buttons

Run	Produce the graph.
Cancel	Close the dialog without further changes.
Defaults	Reset options to their default settings.

Action Icons

	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.
	Restore	Restore names into edit fields and default settings.
	Clear	Clear all fields and list boxes.
	Help	Open the Help topic for this dialog.