search for: fit_i

Displaying 2 results from an estimated 2 matches for "fit_i".

2009 Jun 22
1
Problem with storing a sequence of lmer() model fit into a list
Dear R-helpers: May I ask a question related to storing a number of lmer model fit into a list. Basically, I have a for-loop (see towards the bottom of this email) in the loop, I am very sure that the i-th model fit (i.e.,fit_i) is successfully generated and the character string (i.e., tmp_i) is created correctly. The problem stems from the following line in the for-loop #trouble making line below fit.list[[tmp_i]] <- fit_i I tried the following example which stores glm() model fit without a problem. #the following c...
2007 Dec 04
1
Best forecasting methods with Time Series ?
Hello, In order to do a future forecast based on my past Time Series data sets (salespricesproduct1, salespricesproduct2, etc..), I used arima() functions with different parameter combinations which give the smallest AIC. I also used auto.arima() which finds the parameters with the smallest AICs. But unfortuanetly I could not get satisfactory forecast() results, even sometimes catastrophic