[R] NLME: Limitations of using identify to interact with scatterplots?

I have a quick question regarding the use of identify to interact with points on a scatterplot. My question is essentially: can identify be used when one is plotting model objects to generate diagnostic plots? Specifically I am using NLME. For example, I am plotting the fitted values on the x ax

[R] plotting grouped data with nlme over several pages

Hi I am struggling to split up the plots of the grouped objects in nlme in a usable way. The standard plot command generates plots for each group on a single page. When there are many groups however this does not look so good. I have discovered the layout option which allows one to split up thes

[R] understanding the verbose output in nlme

Hi I have found some postings referring to the fact that one can try and understand why a particular model is failing to solve/converge from the verbose output one can generate when fitting a nonlinear mixed model. I am trying to understand this output and have not been able to find out much: *

Re: [R] understanding the verbose output in nlme

an estimated random effect but in this model there are 2 random effects so not sure if that holds... thanks again... - Original Message - From: "Spencer Graves" <[EMAIL PROTECTED]> To: "Greg Distiller" <[EMAIL PROTECTED]> Cc: Sent: Sunday, June

[R] NLME: using the layout option with the plot command

Hi This is the 2nd time I am posting this question as I never got a reply the 1st time round - apologies to anybody who might take offense at this but I dont know what else to do. I am struggling to split up the plots of the grouped objects in nlme in a usable way. The standard plot command gen

[R] Problems using na.include

Hi I am having problems using na.action=na.include in a nlme call. Basically I am trying to run a particular model without including any covariates but my dataset does include some covariates (factors) with missing values. My understanding from the Pinheiro and Bates book is that one would use

[R] Plotting a ranef object in NLME

Hi I am following the model building strategy that is outlined in the Pinheiro and Bates book wrt including covariates but am having a problem with the plot. Basically I am using 4 covariates (1 of them is continuous) and 3 of them are fine but the 4th one is being shown as a scatterplot despite

[R] NLME: Problem with plotting ranef vs a factor

Hi I am following the model building strategy that is outlined in the Pinheiro and Bates book wrt including covariates but am having a problem with the plot. Basically I am using 4 covariates (1 of them is continuous) and 3 of them are fine but the 4th one is being shown as a scatterplot despite