Unfortunately, predict can't be applied to an object of class "mer"...
Regards, Alex 2012/9/3 PIKAL Petr <petr.pi...@precheza.cz> > Hi > > I am not familiar with glmer but maybe you can try to give to prediction > only values with BMI>25. As you did not provide data nor any code something > like (untested) > > predict(fit, newdata=olddata[olddata$BMI>25,]) > > Regards > Petr > > > -----Original Message----- > > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > > project.org] On Behalf Of Alexander Snijders > > Sent: Monday, September 03, 2012 1:13 PM > > To: r-help@r-project.org > > Subject: [R] select specific rows from regression output > > > > Hello everyone, > > > > I have a data set that contains characteristics of 25,000 patients of > > 92 different hospitals. I have run a regression to capture the > > probability these patients will have a complication after a certain > > operation. Now, I actually want to predict the probability per patient, > > using the outcome of the regression, but I just certain patients > > involved in the prediction. So, I want to use the estimated parameters > > of the full regression, but after that, I only want patients with > > certain characteristics in my prediction matrix. For example, only > > patients with BMI >25. > > > > My regressional formula looks as follows: fit = glmer(response ~ > > sex+bmi+asa+ (1|center), data=data, family=binomial), and my normal > > prediction formula: pred=fit@X %*% fit@fixef. I hope someone can help > > me! > > > > Greetings, Alex > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help@r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide http://www.R-project.org/posting- > > guide.html > > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
