Image Plot - Data
This menu is used for specifying data for an image plot. The data are plotted as a 2-dimensional bit map of RGB colours. These use a standard way of representing a colour, as a single number whose bits are partitioned into three ranges to record the three component colours of red, blue and green. Once the data have been selected you can draw the graph by clicking on the Finish button, alternatively, additional options and axis settings can be set by clicking on the Next button.

How are the data organized?

The data can be supplied in two different formats. A martix of the RGB values or a single variate and coordinates where the variate contains the RGB values and the coordinates contain the pixel locations.

Data

Specifies the RGB values that are to be plotted. Select the name of the identifier for the data from the list or enter the name in directly.

Create Matrix

This is only displayed when the format of the data is for a matrix. This can be used to create a grid of RGB values within a matrix. Clicking this button produces a new menu from which you can create a matrix.

Row coordinates

This is only displayed when the format of the data is for a single variate and coordinates. Specifies the row coordinates for the position of the RGB values. Select the name of the identifier for the data from the list or enter the name in directly.

Column coordinates

This is only displayed when the format of the data is for a single variate and coordinates. Specifies the column coordinates for the position of the RGB values. Select the name of the identifier for the data from the list or enter the name in directly.

Action Buttons

CancelClose the menu without further changes.
BackGo back and choose another graph (if using Graphics Wizard).
NextOpens a dialog where you can set options for the graph.
FinishProduce the graph.

See Also