Correspondence Analysis (CA): Table Specifications Startup Panel - Correspondence Analysis (CA) Tab

You can select the Correspondence Analysis (CA) tab of the Correspondence Analysis (CA): Table Specifications Startup Panel to access the options described here. Use these options to specify the input table for the correspondence analysis.

Option Description
Input Three data file format options are available in the Input group box: Raw data (requires tabulation), Frequencies with grouping variables, and Frequencies w/out grouping vars.

Depending on the Input method selected, one or more of the following option buttons are available.

Row and column variable(s) Displays the standard variable selection dialog box. If you select one row variable and one column variable, then the analysis is performed on the two-way table defined by the categories for the two variables.
Codes for grouping variables Displays the Select Codes for Coding Variables dialog box. Use this dialog box to enter the codes (numbers or text values) that define the categories for the selected variables. If more than one variable was selected from the list of Row and column variable(s), then all combinations of the categories of the selected variables in one list (example, rows) are crosstabulated against the respective combinations of categories for the variables in the other list (example, columns). Note that the Codes for grouping variables button is only available after Row and column variable(s) are selected.
Variable with frequencies/counts Displays the standard variable selection dialog box, in which you select the appropriate variable that is used in the analysis (that is, the variable containing the measure of correspondence, similarity, confusion, association). Only positive values or zero are allowed in this variable (example, Statistica does not permit negative frequencies). Note that the Variable with frequencies/counts button is only available when the Frequencies with grouping variables option button is selected in the Input group box.

For examples and more detailed information on specifying tables for Correspondence Analysis, see Raw Data (Requires Tabulation), Frequencies with Grouping Variables, and Frequencies without Grouping Variables. See also, Correspondence Analysis Introductory Overview.