General Linear Models (GLM) Startup Panel
Ribbon bar. Select the Statistics tab. In the Advanced/Multivariate group, click Advanced Models and from the menu, select General Linear to display the General Linear Models (GLM) Startup Panel.
Classic menus. On the Statistics - Advanced Linear/Nonlinear Models submenu, select General Linear Models to display the General Linear Models (GLM) Startup Panel.
The Startup Panel contains one tab: Quick. Use these options to select the desired method of analysis (see also, General Linear Models Index). See also, Data Mining with Statistica.
OK. Click the OK button to display the appropriate analysis specification dialog, depending on the Specification method selected on the Quick tab.
DF = W-1 / N-1. When the Weighted moments check box is selected, moment statistics (e.g., mean, variance) 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 of squares and cross products will always be based on the weighted values of the respective observations. However, in computations requiring the degrees of freedom (e.g., standard deviation, ANOVA tables, etc.), 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 are based on the sum of the weight values for the weighting variable if the W-1 option button is selected, and are based on the number of (unweighted) observations if the N-1 option button is selected. For more information on options for using integer case weights, see Selecting a Weighting Variable.
For more information, refer to the Introductory Overview. See also GLM - Index, or Methods for Analysis of Variance. For related ANOVA and regression methods, refer also to DOE and Variance Components.