Re: [R] Help in error of mixed models

2007-11-04 Thread Andrew Robinson
Hi Bernardo, it may sound simple-minded, but it looks to me as though you have a problem with the model. Unfortunately it's difficult for us to diagnose the problem because you didn't send an example that we can reproduce. We don't have the "base" data. Based on my understanding of your code, y

[R] Help in error of mixed models

2007-11-04 Thread Bernardo Rangel Tura
Hi R-masters I read the article: Bivariate analysis of sensitivity and specificity produces informative summary measures in diagnostic reviews. In this paper i proposed a bivariate mixed model and use SAS proc mixed to adjust the estimates. I thinks use R to make the same and try with this cod