what is the confidence interval for a smooth function why is the confidence interval zero when fitting the gamm model in r what is the confidence interval of a smooth function in r why does gamm model have confidence interval? why is confidence interval zero in r when fitting a gamm model what is the confidence interval why is the confidence interval zero in gamm what is the confidence interval in a smooth function r why is the confidence interval zero when fitting gamm which model has zero confidence interval why is confidence interval zero in r when fitting mamm when fitting gamm model why confidence interval is zero during a smooth function when fitting a mamm model does the confidence interval why is the confidence interval zero why does the confidence interval in r 0 at the middle of the curve what is the confidence interval of r when fitting gamm why is the confidence interval zero why does confidence intervals are zero when a smooth function is linear what is the confidence interval in a smooth function in r