Shade Plot

Select menu: Graphics | Shade Plot

Use this to specify data for a shaded representation of a rectangular or symmetric matrix (shade plot). Each element of the data matrix is represented by a shaded rectangle indicating the value at that location, using either colour or shading density. This type of display is often used for graphical display of spatial data or in a cluster analysis to display a similarity matrix.

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

You can set additional options and axis settings by clicking the Options, X axis, Y axis and Frame tabs.

Available data

This lists data structures appropriate to the current input field. It lists either matrices or symmetric matrices 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.

Data matrix

Specifies a matrix or symmetric matrix containing the values that are to be displayed. Double-click the name of the identifier for the data within the Available data list to copy it across or type the name.

Create matrix

This opens a menu where you can create a matrix of values.

Permutations

Specifies a variate containing a permutation of the units for a similarity matrix. Double-click the name of the identifier for the data within the Available data list to copy it across or type the name.

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.