similar to: Regression by factor using "sapply"

I have a list object, in which I have stored n lme4-models. For example: library(lme4); myModels <- list(); myModels[1] <- lmer(Reaction ~ Days + (Days|Subject), sleepstudy) myModels[2] <- lmer(Reaction ~ Days + (1|Subject) + (0+Days|Subject), sleepstudy) Now I would like to perform an anova over all models in the list. However, the anova function requires that every model is inserted

Hi, May I ask how I can save the coefficients and the p values into a table? thanks. jiong The email message (and any attachments) is for the sole...{{dropped:11}}

Hi All: I need to run a bunch of models one-by-one and retrieve the outputs (like estimates, p values) accordingly. Some of models may not have outputs due to singularity or even no observations. If this happens, assign NA to the outputs. For example, #running models fit.mod <- lm(xxxxxxxxxx) #model 1 fit.mod <- lm(xxxxxxxxxx) #model 2 ......... fit.mod <- lm(xxxxxxxxxx) #model 10

Is there a way to control which model modules are being loaded (e.g. models/mymodels) -- all modules are automatically loaded. I want to load them depending on what environment I am running (e.g. development vs production) Cheers, Nicholas

Is there any general guidelines for accessing model objects directly in the view? It seems like it would be a potential problem - that it would be better to keep model objects out of the view entirely. Instead, the controller should extract whatever data is needed from the model and put it into temporary objects, thus protecting the views from any changes in the models and keeping them from

Hi all, I have a column that peeks its value from a sequence (postgres) some times. Other times, I set it to a certain value. This column has a default value of "nextval(''the_sequence'')"... When I want that this column peeks the value from the sequence, I do this: obj = Mymodel.new obj.some_column1 = blah obj.some_column2 = blah obj.some_column3 = blah obj.save! but

One should be able to change the value of a primary key, right? But it''s not working for me. If I do this: @drug = Drug.find(tid1) @drug.id = tid2 @drug.category = ''Test2'' if @drug.save savedok = ''Saved successfully'' else savedok = ''Not saved'' end I get ''Saved successfully''