search for: sdkern

Displaying 1 result from an estimated 1 matches for "sdkern".

2003 Sep 03
2
lme in R and Splus
...ints mm <- 7 # number of support sites for x(s) # create sites s ss <- seq(1,10,length=nn) # create the data y e1 <- rnorm(nn,sd=0.1) e2 <- cos(ss/10*2*pi*4)*.2 yy <- sin(ss/10*2*pi)+e2+e1 plot(ss,yy) # locations of support points ww <- seq(1-2,10+2,length=mm) # width of kernel sdkern <- 2 # create the matrix KK KK <- matrix(NA,ncol=mm,nrow=nn) for(ii in 1:mm){ KK[,ii] <- dnorm(ss,mean=ww[ii],sd=sdkern) } # create a dataframe to hold the data df1 <- data.frame(y=yy,K=KK,sub=1) df1$sub <- as.factor(df1$sub) # now fit a mixed model using lme a1 <- lme(fixed= y...