Hi everybody, I am currently trying to forecast some double seasonal time series by using the function dshw. I want to access the standard errors to build the confident interval for my forecast. I am using to following code : fit<-dshw(eem,period1=7,period2=48,h=48) then by using summary(fit), I see that my se are contained in the vector : $s20 but when I call fit$s20, I get NULL. I don't understand why this happens. How should I proceed to get these se? By advance, thank you very much for your help! -- View this message in context: http://r.789695.n4.nabble.com/access-the-se-of-a-forecast-tp4628847.html Sent from the R help mailing list archive at Nabble.com.
access the se of a forecast
6 messages · plocq, Rui Barradas
Hello, Many people mistake 'summary' for a special kind of print function. At least I did, at first. The fact is that 'summary' does it's own computations and outputs the result of those computations, to be printed by the appropriate print method. Simply put, what you need is summary(fit)$s20 or sfit <- summary(fit) sfit$s20 Hope this helps, Rui Barradas plocq wrote
Hi everybody, I am currently trying to forecast some double seasonal time series by using the function dshw. I want to access the standard errors to build the confident interval for my forecast. I am using to following code : fit<-dshw(eem,period1=7,period2=48,h=48) then by using summary(fit), I see that my se are contained in the vector : $s20 but when I call fit$s20, I get NULL. I don't understand why this happens. How should I proceed to get these se? By advance, thank you very much for your help!
-- View this message in context: http://r.789695.n4.nabble.com/access-the-se-of-a-forecast-tp4628847p4628876.html Sent from the R help mailing list archive at Nabble.com.
Thank you very much for your answer. I didn't know this. However, I tried what you suggest and it doesn't work either : - by typing summary(fit)$s20, I get exactly what I had with summary(fit) and - by typing sfit<-summary(fit) and then sfit$s20, I get NULL... these facts seem very strange to me. -- View this message in context: http://r.789695.n4.nabble.com/access-the-se-of-a-forecast-tp4628847p4628912.html Sent from the R help mailing list archive at Nabble.com.
Hello, You're right, sorry for the misleading (general purpose) information. fit$model$s20 (The object can be inspected with names(fit) and then print each of the components or names(fit$model).) Rui Barradas plocq wrote
Thank you very much for your answer. I didn't know this. However, I tried what you suggest and it doesn't work either : - by typing summary(fit)$s20, I get exactly what I had with summary(fit) and - by typing sfit<-summary(fit) and then sfit$s20, I get NULL... these facts seem very strange to me.
-- View this message in context: http://r.789695.n4.nabble.com/access-the-se-of-a-forecast-tp4628847p4629023.html Sent from the R help mailing list archive at Nabble.com.
What am I thinking about? Objects should be inspected with str(object) R.B. Rui Barradas wrote
Hello, You're right, sorry for the misleading (general purpose) information. fit$model$s20 (The object can be inspected with names(fit) and then print each of the components or names(fit$model).) Rui Barradas plocq wrote
Thank you very much for your answer. I didn't know this. However, I tried what you suggest and it doesn't work either : - by typing summary(fit)$s20, I get exactly what I had with summary(fit) and - by typing sfit<-summary(fit) and then sfit$s20, I get NULL... these facts seem very strange to me.
-- View this message in context: http://r.789695.n4.nabble.com/access-the-se-of-a-forecast-tp4628847p4629034.html Sent from the R help mailing list archive at Nabble.com.
Thank you very much for all your tips! It works perfectly know and I begin to understand how R is working. I will now see how to construct this confident interval. Have a nice evening! -- View this message in context: http://r.789695.n4.nabble.com/access-the-se-of-a-forecast-tp4628847p4629088.html Sent from the R help mailing list archive at Nabble.com.