The Autocorrelation menu provides access to several types of autocorrelation analyses in GS+.
• Variograms
• Correlograms
• Covariance Analysis
• Drift
• Pairwise Relative Variograms
For each analysis you may choose to analyze the primary variate Z, the covariate Z2, or the cross-variate Z x Z2, although cross-variate analysis is not available for every autocorrelation measure.