similar to: Accessing functions in a library

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

Hello all: I have searched through the help files and I have been unsuccessful in solving this problem. I am trying to create a small wrapper function that will go around a call to a plot function and create a windows metafile in the directory and also write the name of the file to a text file. The purpose is to efficiently bring a large number of plots into powerpoint. I am using

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 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 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 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

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

Dear r-help I am trying to run LDA on a training data set, and test it on another data set with the same variables. I found examples using crossvalidation, and using training and testing data sets set up with sample, but not when they are preassigned. Here is what I tried # FIRST SET UP A DATAFRAME WITH ALL THE DATA AND CREATE NEW VARIABLES traintest1 <-

Hi, I’ve written some code to obtain a confusion matrix when the true classification and the predicted classification are known. Suppose true classification is called “tr” and predicted classification is “pr”. I have 4 classes in tr, but only 3 classes out of 4 are predicted in “pr”. Following is my code, but looks quite “clunky” to me. I wonder if you have any suggestions to improve it.

I can think of several ways to blunt force hard code what I want but I imagine there is a command or two that can be easily combined to do this: I have a data frame with about 23000 observations. There first variable is the group to which the observation belongs (about 500 different groups). The second variable is a response for each observation that is a 1,2,3,4 or 5. I want to be able to

Dear R users I have a very basic question. I tried but could not find the required result. using dat <- pima f <- table(dat[,9]) > f 0 1 500 268 i want to find that class say "0" having maximum frequency i.e 500. I used >which.max(f) which provide 0 1 How can i get only the "0". Thanks and best regards Muhammad Azam Ph.D. Student Department of

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

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. So, made a tempfunc that was a copy of tools:::.install_packages and edited the file_test("-x","configure") line to return a TRUE now I get a Permission Denied error (even if I run as root) >

> 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

On 22/06/2017 11:15 AM, Conklin, Mike (GfK) wrote: > Following Duncan's instructions I find that the system and R find that configure IS executable but if trying to install via install.packages I get the same error. > I also tried using R CMD INSTALL from the terminal and install.packages with a local file pointing to the very same tar.gz file that shows the executable bit set. All

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 install.packages(listofpackages). Now I have 352 packages on the new machine but several very common packages (like much of the