What information is necessary to start an analysis (variables, grouping, codes, options, etc.)?
 

Clicking the Help  button or pressing the F1 key will display the relevant section of the STATISTICA Electronic Manual containing a comprehensive explanation of all options in the current dialog.

However, all analysis definition screens in Statistica follow the "self-prompting" dialog conventions:

The OK button is never dimmed; when unsure what to select next, simply click OK, Statistica proceeds to the next logical step and prompts for specific input if it is necessary.