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 axis vs a variable called log2game with the following code:
plot(D2C29.nlme, log2game ~ fitted(.), abline=c(0,1)) and then I have tried to use identify as follows: identify(D2C29.nlme$fitted[,2],Data2$log2game,row.names(Data2)) (if I leave out the [,2] on the fitted attributes then I am told that x and y are not the same length and it appears that this is due to the fact that the fitted attribute has 2 columns.) but I get an error message that "plot.new has not been called yet". I am not sure if this is because I am doing something wrong or if identify simply cannot be used in this context. Many thanks Greg ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
