Discerning - Version MIXREG -Programming Software

MIXREG is a program that provides estimates for a mixed-effects regression model (MRM) including autocorrelated errors. This model can be used for analyses of unbalanced longitudinal data, where individuals may be measured at different number of timepoints, or even at different timepoints. Autocorrelated errors of a general form or following an AR(1), MA(1), or ARMA(1,1) form are allowable. This model can also be used for analysis of clustered data, where the mixed-effects model does not assume that each observation is independent, but does assume data within clusters are dependent to some degree. The degree of this dependency is estimated along with with estimates of usual model parameters, thus adjusting these effects for the dependency resulting from the clustering of the data.