why does fitlm not provide prediction intervals?

fitlm provides 95% confidence intervals but not prediction intervals. Why? Is there an easy way to get prediction intervals?

Answer 1

[Hannah Chan]

https://www.mathworks.com/help/stats/linearmodel.predict.html

Using [ypred,yci] = predict(mdl,Xnew) gives the confidence interval.

If you use [ypred,yci] = predict(mdl,Xnew,Name,Value)

With Name = 'Prediction', and value = 'observation' it should give the prediction interval