Correspondence Analysis

Select menu: Stats | Multivariate Analysis | Correspondence Analysis

Correspondence analysis is used to obtain a simultaneous decomposition of an incidence matrix (two-way contingency table) into row and column components.

After you have imported your data, from the menu select
Stats | Multivariate Analysis | Correspondence Analysis.
Fill in the fields as required then click Run.

You can set additional Options before running the analysis and store the results by clicking Store.

Available data

This lists data structures appropriate to the current input field. Double-click a name to copy it to the current input field or type the name.

Data matrix

Specifies a matrix containing incidence data.

Method

Correspondence analysis and three variants (reciprocal averaging, biplot-style and an alternative implementation of correspondence analysis) are available, as described in the CORANALYSIS procedure.

Action buttons

Run	Run the analysis.
Cancel	Close the dialog without further changes.
Options	Opens a dialog where additional options and settings can be specified for the analysis.
Defaults	Reset options to the default settings. Clicking the right mouse on this button produces a pop-up menu where you can choose to set the menu using the currently stored defaults or the Genstat default settings.
Store	Opens a dialog to specify names of structures to store the results from the analysis.
Biplot	Opens a dialog to produce a biplot of the results from the analysis.

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.