similar to: Help with evaluation of expressions

I am trying to write a modified function to plot an rpart object. By using getS3method I can see the plot and text code that I want to modify. Since I don't want to modify the package, I create a new function to plot the rpart object. The problem is that the original function calls many rpart specific functions that are only visible inside the rpart namespace. Therefore, when I call my

I am trying to create a dendrogram object to be able to display a multiway table. I understand how the dendrogram object is structured, a nested list of lists, but I am having trouble trying to create that structure from a table. Basically, what I would like to do is pass a multiway table, say table(a,b,c) to a function and have it display the table as a dendrogram. If a,b,c, and d are all

I am just starting to experiment with the party package and I am getting strange results. In the examples, the "statistic" and "criterion" seem related, i.e. criterion is a 1-p.value and statistic is the test statistic. Higher statistics are associated with higher criteria values. When I run these models on my own dataset, the highest statistic ends up getting a 0.00

We occasionally utilize the coxph function in the survival library to fit multinomial logit models. (The breslow method produces the same likelihood function as the multinomial logit). We then utilize the predict function to create summary results for various combinations of covariates. For example:

I have been trying to get Rgraphviz to work (I know it is from Bioconductor) unsuccessfully. Since I have no experience with Bioconductor I thought I would ask here if anyone has advice. I have installed Graphviz 2.20.3 as is recommended on the Bioconductor site but basically R cannot seem to find the needed dll files. So, even though I have added the appropriate directories to the system path R

I would like to be able to submit a list of URLs of various webpages and extract the "content" i.e. not the mark-up of those pages. I can find plenty of examples in the XML library of extracting links from pages but I cannot seem to find a way to extract the text. Any help would be greatly appreciated - I will not know the structure of the URLs I would submit in advance. Any

I am trying to run a partialPlot with Random Forest (as I have done many times before). First I run my forest... Cell is a 6 level factor that is the dependent variable - all other variables are predictors, most of these are factors as well. predCell<-randomForest(x=tempdata[-match("Cell",names(tempdata))],y=tempdata$Cell,importance=T) Then I try my partial plot to look at the

I am looking for advice on an editor to use with R (windows) that has an autosave feature. I typically write scripts using the RGui (and tried TinnR yesterday) but I am having continuing problems with BSODs (non R related) and have in the past have had issues with R crashes and would really like a system that does not require me to remember to hit the save button on my script every 10 minutes so

I am trying to run a very large Bradley-Terry model using the BradleyTerry2 package. (There are 288 "players" in the BT model). My problem is that I ran the model below successfully. WLMat is a win-loss matrix that is 288 by 288 WLdf<-countsToBinomial(WLMat) mod1<-BTm(cbind(win1,win2),player1,player2,~player,id="player",data=WLdf) Then I needed to run the same model

So apparently (being a linux novice) I didn't realize it was insufficient to simply have the file marked as executable. It turns out the default TMP directory on my machine is mounted with a noexec flag so no files in that directory are allowed to be executed. The solution is to set an environment variable TMPDIR=some new directory I created (eg. /home/myusername/tmp) Then R uses that

On 22/06/2017 5:02 PM, Conklin, Mike (GfK) wrote: > I am using debug on the .install_packages function...stepping through. Once the temporary folder is created and the tar file expanded I run file_test and get a FALSE back indicating that the configure file is not executable. I don't know what is causing this bug. Perhaps a Linux user can reproduce it and fix it. Here's what I see:

I had the same thought in the shower this morning but I was disappointed to find that SElinux was disabled on the system. My next step will be to install a previous version of R on the system. My problem is that I am planning a shiny server installation and at least half of the apps on the current system depend on these libraries that will not install. -- W. Michael Conklin EVP Marketing &

I am using debug on the .install_packages function...stepping through. Once the temporary folder is created and the tar file expanded I run file_test and get a FALSE back indicating that the configure file is not executable. [1] "/tmp/RtmpMM6iC1/R.INSTALLc5ca415e4310/stringi" Browse[2]> dir(new) [1] "DESCRIPTION" "INSTALL" "LICENSE"

On 22/06/2017 3:42 PM, Conklin, Mike (GfK) wrote: > Not much progress..... I step through debug and it gets to the do.install() function which immediately errors with the same "configuration not executable" error. I believe that is a locally defined function, which means you can set a breakpoint within it but only if R is compiled with source info, or you can manually call

> On Jun 21, 2017, at 1:39 PM, Conklin, Mike (GfK) <Mike.Conklin at gfk.com> wrote: > > I have a Ubuntu server with an R installation that has 384 packages installed. We are trying to replicate the system on a Red Hat Enterprise server. I downloaded the list of packages from the Ubuntu machine and read it into an R session on the new machine. Then I ran

I am trying to use a shiny app to update records in an sqlite database. I keep running into the following error: unable to find an inherited method for function 'dbSendQuery' for signature '"src_dbi", "character"' The query I am trying to send is: [1] "update kpquestions set mrisupercat = 'Demographics - Respondent' , set mricategory =

Hello! I am using function "curve" to create a line graph. I was wondering, if it's possible to "turn off" the default tick marks and introduce those tick marks in specific locations. For example, currently in my X axis tick marks are (automatically) at 10, 11, 12, 13 but I want them to be in 5 specific locations, like 9.89, 10.34, etc. Any hint would be greatly

Hello! I have a matrix a with 2 variables (see below) that contain character strings. I need to create a 3rd variable that contains True if the value in column x is equal to the value in column y. The code below does it. a<-data.frame(x=c("john", "mary", "mary", "john"),y=c("mary","mary","john","john"))

Dear everyone, I don't know much about Integer Programming but am afraid I am facing a problem that can only be solved via Integer Programming. I was wondering if those of you who have experience with it could recommend an R package. I found the following R packages: Rglpk glpk lpSolve lpSolveAPI Are there any others? Are some of them easier to use than others for a beginner? Any advice

Hello! I've run a simple linear model: result<-lm(DV~A+B+C,data=Data) My Data$A,Data$B, and Data$C are factors. So, lm automatically recoded them into dummy variables. I have all the results I need but one. Question: Where could I see the variance explained by all A dummy variables together, then all B dummy variables together, and all C dummy variables together - when other predictors