Statistics Breakdown (Non-Factorial)
On the Basic Statistics and Tables dialog box - Quick tab, select Breakdown; non factorial tables to display the Statistics Breakdown (non-factorial) dialog box, which contains two tabs: Quick and Descriptives. The options on these tabs are used to analyze statistics by groups (breakdowns). See the Breakdown Procedure Overview.
Summary
Click this button to perform the specified analyses and display the results in the form of a spreadsheet.
This spreadsheet contains estimates of various statistics you have selected from the options in the Statistics group box on the Descriptives tab for each category of the grouping variables that you have selected via the Variables button on the Quick tab.
Cancel
Click this button to close the dialog box without performing an analysis and return to the Basic Statistics and Tables dialog box.
Select Cases
Click this button to display the Analysis/Graph Case Selection Conditions dialog box, which is used to create conditions for which cases will be included (or excluded) in the analysis.
More information is available in the case selection conditions overview and syntax summary.
W
Click the W (weight) button to display the Analysis/Graph Case Weights dialog box, which contains options to adjust the contribution of individual cases to the outcome of an analysis by weighting those cases in proportion to the values of a selected variable.
Weighted moments
Select this check box to specify that each observation contributes the weighting variable's value for that observation.
The weight values need not be integers. This module can use fractional case weights in most computations. Some other modules use case weights as integer case multipliers or frequency values. This option is available only after you have defined a weight variable via the W option described above.
DF = W-1 / N-1
When the Weighted moments check box is selected, some statistics related to the moments (such as standard deviations and variances) can be based on the sum of the weight values for the weighting variable (W-1), or on the number of (unweighted) observations (N-1).
The sums (and means), and sums of squares and cross products are always based on the weighted values of the respective observations. However, in computations requiring the degrees of freedom (e.g., standard deviation), the value for the degrees of freedom can either be computed as the sum of the weight values minus one, or as the number of observations minus one. Moment statistics (except for the mean) are based on the sum of the weight values for the weighting variable when the W-1 option button is selected, and are based on the number of (unweighted) observations when the N-1 option button is selected. For more information on options for using integer case weights, see also Selecting a Weighting Variable.