search for: residiuals

I'm fitting a mixed effects model: fit.1 <- lme(y~x,random=~1|id,data=df) There are two different observations for each id for both x and y. When I use plot(fit.1), there is a strong increasing linear trend in the residuals versus the fitted values (with no outliers). This also happens if I use random=~x|id. Am I specifying something incorrectly? Rick B.

Hello there This is the first time I have used r-help message board so I hope I have got the right address. I am trying to check the residuals of a GLMM model(run using the package lme4). I have been able to check the residiuals of REMLs in lme4 using the following: m1<-lmer(vTotal~Week+fCollar+ (1|fCat), collars) res<-resid(m1) plot(res) qqnorm(res) library(MASS) par(mfrow=c(2,3)) res<-residuals(m1) truehist(res,main="Histogram of Residuals") curve(dnorm(x,mean=mean(res),sd=sd(res)),add=TRUE) qqnorm(f...

Hi folks. My first post over here. While working on a music server optimzation (which ususally goes hand in hand with running pretty low buffers on realtime streams) I figured that certain HiRez flacs were causing XRUNS/hickups on my Linux server platform. The interesting thing is to run into XRUNS even though the stream gets send to a Squeezebox Touch which got a 20s buffer on its receiving