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...hiero and Bates (2000, pg 24) the authors state that the lme() does generate sensible Ml and REML estimates for unbalanced data. I would greatly appreciate any insight into how and when the nlme package or functions within it do not produce sensible / accurate results. Sincerely, Anthony Pezzola ----------------------------------------------- Anthony A. Pezzola apezzola@uc.cl (02) 354-7823 Profesor de Ciencia Política Instituto de Ciencia Política Pontificia Universidad Católica de Chile Santiago de Chile We looked at the equations on the whiteboard. After awhile, I finally ask...

How can I change the tick mark values in lattice, specifically wireframe? I have a 11*46 matrix of values that I am plotting using wireframe. Unfortunely, the values range from 0.1-1.1 and 0.5-5. Using the code below the tick marks have are (2,4,6,8,10) and (10,20,30,40). Thanks in advance. graphic5 <- wireframe(output.matrix, shade= TRUE, scales = list(arrows = FALSE, cex=.6,

...log(scale) coefficient produced by survreg, particularly in a none “survival” context? 4) Is there now another (simpler) package that will estimate multilevel tobit models in R? Thank you for your time and consideration. Anthony ----------------------------------------------- Anthony A. Pezzola apezzola@uc.cl (02) 354-7823 Profesor de Ciencia Política Instituto de Ciencia Política Pontificia Universidad Católica de Chile Santiago de Chile We looked at the equations on the whiteboard. After awhile, I finally asked if they made sense to him and he said no, "I think they''re...

...that some one might be to tell me whether there are any functions that produce influence measures for lme /nlme objects (i.e those suggested by Lesaffre and Verbeke or Langford and Lewis for multilevel models). Thanks in advance. ----------------------------------------------- Anthony A. Pezzola apezzola@uc.cl (02) 354-7823 Profesor de Ciencia Política Instituto de Ciencia Política Pontificia Universidad Católica de Chile Santiago de Chile [[alternative HTML version deleted]]