search for: lm_examplemodel

Dear all, I am a R user since about 3 weeks now and still struggeling with things that must be very easy for you... This week I am struggling with the function predict() I want to use this function to get a 95% interval. I understand that you have to use it in such a way as: lm_examplemodel<- lm(y~x1 + x2 + x3) newdata <- data.frame(x1 = ???, x2 = ???, x3 = ???) predict(lm_examplemodel, newdata, interval = 'confidence') And here comes my questions. As you maybe already have guessed its about the questions marks/ the values for the new data frame you have to use. I re...