Re: large CV

From:"Venkatesh Atul Bhattaram" Subject: Re: [NMusers] large CV Date:Wed, 5 Mar 2003 11:08:40 -0500 Hello Lucaine Clearly some of the estimates of etas are bad. You might want to fix them to zero or to any previously reported value if the subjects belong to the same population and not to any special population. Also I would explore the plots of different etas and try to reduce the "dimensionality" of the model. You will find that when you plot the etas and do a 90 degree projection, most of the variability will be explained by one of the two parameters and you will also notice the scale differences. So it looks like simplification of the model will be a good solution either in terms of fixing or introducing correlations for which you might need some explanations in terms of covariate information. Venkatesh Atul Bhattaram Post-doctoral Fellow University of Florida Gainesville-32610