Non Linear, Regression, R, Modelling.
However, without specifying the hierarchy specified in the model, nothing will happen. gamm_fit<-mgcv::gamm(D9std~s(time), data=data_grouped) plot(gamm_fit$gam,pages=1) summary(gamm_fit$lme) summary(gamm_fit$gam) anova(gamm_fit$gam) par(mfrow = c(2, 2)) mgcv::gam.check(gamm_fit$gam) The mean curve