Contributions of code to provide alternative calculations of denominator degrees of freedom are welcome :-)
I think it would be good to bear in mind that the use of the t and F distributions for models with mixed effects is already an approximation. If your design is such that you end up with a very few denominator degrees of freedom then the whole question of whether you should be using F or t distributions in the first place becomes problematic. If the number of denominator degrees of freedom is moderate than the distinction between alternative methods becomes unimportant. -- Douglas Bates [EMAIL PROTECTED] Statistics Department 608/262-2598 University of Wisconsin - Madison http://www.stat.wisc.edu/~bates/ ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
