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...2,value="gcv") My bootstrap estimates are produced however the second command "varImp" produces the following error:    Error in UseMethod("varImp") : no applicable method for "varImp" Not sure what is going on, any advice would be appreciated, Thanks, Joe Retzer [[alternative HTML version deleted]]

...ever my colors are interwoven when I try the same approach on clusters from trimkmeans. I also tried sorting the silhouette object using sortSilhouette which did not solve the problem. If anyone has a suggestion, please let me know. I'm using R 2.4.0 on an XP based PC. Thanks very much, Joe Retzer [[alternative HTML version deleted]]

...lish it. I'd like to create an mtext title which has certain words bold, the rest not bold. So far I've been able to create one which is all bold, one which is all not bold and one which has bold and not bold superimposed on one another. Any suggestion would be appreciated. Many thanks, Joe Retzer # Not bold mtext(paste("Overall Satisfaction Call Difference vs. Overall Satisfaction Rep. Difference"), outer = TRUE, cex = 1.3) # Bold mtext(expression(bold("Overall Satisfaction Call Difference vs. Overall Satisfaction Rep. Difference")), outer = TRUE, cex = 1.3) # I'...

...I get a graphic with a very light framebox around the outside. Note, I'm not using a fbox command in LaTeX. Not sure if this is something produced in R, LaTeX or beamer but if anyone has any suggestions (for getting rid of the frame) I'd greatly appreciate hearing from you. Thanks all, Joe Retzer [[alternative HTML version deleted]]

I don't seem to be able to label the x, y or z axis when creating a 3d chart using rgl.surface. I'd like to have them parallel to the axis line and move with the graph when rotated. Can this be done? Many thanks, J. Retzer [[alternative HTML version deleted]]

...lish it. I'd like to create an mtext title which has certain words bold, the rest not bold. So far I've been able to create one which is all bold, one which is all not bold and one which has bold and not bold superimposed on one another. Any suggestion would be appreciated. Many thanks, Joe Retzer # Not bold mtext(paste("Overall Satisfaction Call Difference vs. Overall Satisfaction Rep. Difference"), outer = TRUE, cex = 1.3) # Bold mtext(expression(bold("Overall Satisfaction Call Difference vs. Overall Satisfaction Rep. Difference")), outer = TRUE, cex = 1.3) # I'...

...e-ordering so that observations within groups are adjacent to one another. The data is a proximity matrix produced by random forests. I suspect I'm making a simple error but not sure what it is. Any advice would be appreciated. I'm using R 2.2.1 on a Windows XP machine. Many thanks, Joe Retzer [[alternative HTML version deleted]]

...quot; in SAS I ultimately want to graph the total canonical structure coefficients for the first 2 discriminant variables along with the groups scores calculated by putting in variable means into the discriminant functions. Any help or advice would be greatly appreciated, Thanks very much, Joe Retzer --------------------------------- Show us what our next emoticon should look like. Join the fun. [[alternative HTML version deleted]]

Hi Friends, I'm trying to model the consumer decisions (Click-Through Rate and Conversion) in Search Engine Advertising using a hierarchical Bayesian binary logit. The input data is the weekly CTRs and Avg. Position for each search keyword. CTR is modeled as (for each keyword i and week j): Pij = exp(C + Bi x Positionij + A1 x Lengthi + A2 x Brandi + A3 x ProductSpecifici) / [1 + exp(C +

Hi all, I am trying to play around with the randomForest function for classification. I know its performance is great. I am currently using the default options. It has many options. How do I further tweak the options so that I can make its performance even better? What are the options that are mostly used? Thanks a lot! M [[alternative HTML version deleted]]

Dear R-help, I'm using the R2WinBUGS package and getting an error message: Error in file(file, "r") : unable to open connection In addition: Warning message: cannot open file 'codaIndex.txt', reason 'No such file or directory' I'm using R 2.2.1 and WinBUGS 1.4.1 on a windows machine (XP). My R code and WinBUGS code is given below.

I'd like to plot a heatmap along with a silhouette plot and clusterView plot in the same graphic window however both heatmap and heatmap.2 create a new window and will not appear with other graphs when using the par(mfrow= ) option. Does anyone have an alternative which would put these plots together in a single window? Many thanks, Joe [[alternative HTML version deleted]]

Dear R-help, I'm using the R2WinBUGS package and getting an error message: Error in file(file, "r") : unable to open connection In addition: Warning message: cannot open file 'codaIndex.txt', reason 'No such file or directory' I'm using R 2.2.1 and WinBUGS 1.4.1 on a windows machine (XP). My R code and WinBUGS code is