similar to: How to convert SEXP to double

Hi, I am using RInside for one of the applications that I'm using. The error that occured is as follows. When I use R.parseEval("xyz") if the parse fails then the mb_m is not cleared and hence all subsequent calls to R.parseEval fail. example: when R.parseEval("stringConcatfactoryrandom") is executed the R instance looks like this (gdb) p R $7 = (RInside &)

Dear All, I would like to use - plot, - curve inside a C++ program. What R package do you recommend? Rcpp? Thanks in advance, Paul

Hi I'm trying to implement something similar to the following R snippet using C. I seem to have hit the wall on accessing class slots using C. library(fPortfolio) lppData <- 100 * LPP2005.RET[, 1:6] ewSpec <- portfolioSpec() nAssets <- ncol(lppData) setWeights(ewSpec) <- rep(1/nAssets, times = nAssets) ewPortfolio <- feasiblePortfolio( data = lppData, spec = ewSpec,

Hi, I'd like to construct an R list object in C++, fill it with relevant data, and pass it to an R function which will return a different list object back. I have browsed through all the R manuals, and examples under tests/Embedding, but can't figure out the correct way. Below is my code snippet: #include <Rinternals.h> // Rf_initEmbeddedR and other setups already performed

Dear all, I have made couple logistic regressions, what making a distribution of some event. Currently, i store it like this: o1 <- lrm(...) o2 <- lrm(...) o3 <- lrm(...) ... Then, i have made a function to peak required regression object from this variables by it number: get_object <- function(obj_name, nModel) { eval (parse(text=paste("o <- ", obj_name, nModel,

Hello I'm a new in R I have a large data.frame "s" (this is actualy just a table in mysql) : > names(s) [1] "symbols", "day", "value" I need to convert it to simple matrix. I have define this matrix like this: > data.matrix <- matrix(nrow=nDays, ncol=nSymbols, dimnames=list(days, symbols)) then i just copy values to the matrix using for()

Hi, I need to check if a string "<rh>a,b,c,d<rh>" is delimited by two "<rh>" 's as efficiently as possible(I need to do this a lot of times) and return TRUE. Can someone suggest a good technique? [[alternative HTML version deleted]]

Hello, I get a value which stores a relative file name. (I get it from another function, which I don't want to change.) e.g. > fileName <- "../data/2010-08.csv"; Is it possible to get the absolute file path out of this value? (e.g. /home/sebastian/documents/data/2010-08.csv) Kind regards, Sebastian

Some formula methods for S3 generic functions use the idiom returnValue$call <- sys.call(sys.parent()) to show how to recreate the returned object or to use as a label on a plot. It is often followed by returnValue$call[[1]] <- quote(myName) E.g., I see it in packages "latticeExtra" and "leaps", and I suspect it used in "lattice" as well. This idiom

Hello I have a quick question. I need to compute matrix in R, like A <- t(X) %*% solve(V) %*% X, where X is a vector and V is a matrix This code works, but now i want to optimize it. I have try: A <- crossprod(X, solve(V)) %*% X Is there another, better way? WBR Dima [[alternative HTML version deleted]]

Here is a case where the current scheme fails: > with(datasets::mtcars, xyplot(mpg~wt|gear)$call) xyplot(substitute(expr), data, enclos = parent.frame()) Bill Dunlap TIBCO Software wdunlap tibco.com On Thu, May 11, 2017 at 1:09 AM, Deepayan Sarkar <deepayan.sarkar at gmail.com> wrote: > On Wed, May 10, 2017 at 2:36 AM, William Dunlap via R-devel > <r-devel at

Hello, I have some problems to migrate to R >3.0 my devel machine (R.2.15.2). So I decided to start from scratch with a brand new virtual machine. Downloaded latest network install of debian testing, not stable (jessie/sid, SMP Debian 3.16.3-2 (2014-09-20) x86_64 GNU/Linux) installed only with ssh-server and basic utilities (no X). Then I installed R by: apt-get install

Hi Folks, I am creating a multi-threaded C++ application that initializes RInside in one of the child thread. I would also like to access support interfaces like Rcpp::Environment in the remaining child threads, so that I could access any "R" function associated with the environment initialized. When I run my program, I always get "C Stack limit too huge" errors. I looked

I have intstalled R-3.2.2,Rcpp-0.12.2,RInside-0.2.13 on windows. I compiled the example1 of RInside in the example directory which create a RInside instance and prints "hello world". The compiler is intel c++. I included the RInside source files in the project and fixed the compile and link errors. But when run the executable file it prints some error message and quites. I debug

Hello, I am trying to use Rinside package in my VC++.Net program ( using Visual Studio 8.0 environment). I have downloaded Windows binary of RInside from the following link http://cran.r-project.org/web/packages/RInside/index.htm Version of RInside - 0.2.3 While compiling the program , i am getting about 69 error. Some of them are the folllowing ones. Please me in solving the following issue

I have spent some hours browsing the RInside and rcpp documentation, lots of it; but ... as a programmer of C++ since 1990, on both Windows and Unix ... ( Solaris and Ubuntu, and Mandrake/Mandrivo Linux); I see a minor problem ...... Where is the rcpp.h header file?? The below code fails to compile as the RInside.h header file references the rcpp.h header file, which is not included with

Hi, Can anyone tell me how to embed R code in a C++ file. I am actually using a mac running on the OSX 10.6.2 and the IDE Xcode Version 3.2 and I would like to embed the basic function like geometric, binomial, normal and hyper geometric distributions in a sample cpp file. I heard about the library RInside and i have downloaded the source code for mac but i do not know how to build it in

I'm going to using RInside on windows enviroment. I installed all tools and packages according to Dirk's instruction. My R installation reside in d:\hli\programfiles\R-3.2.2. There's no problems with folders with spaces. The rtools is installed in d:\hli\programfiles\Rtools and MinGW in d: \hli\programfiles\MinGW. The R_HOME is set to d:\hli\programfiles\R-3.2.2. I

The solution post is here: http://lists.r-forge.r-project.org/pipermail/rcpp-devel/2012-November/004771.html In the paragraph: I did need however to install Rcpp and RInside from source, and with the same compiler used to compile qtdensity (otherwise I would get additional linker errors). As I had trouble getting the (Cygwin-based) g++ shipped with Rtools to work with Qt, I used instead the

hi, i want to build a Qt front-end GUI which communicates with R, and i am not sure what i should use for the interface. There seems to be many ways: R.dll, Rinside, Rcpp, RQt, Rtools... . what is the best way? please advice. basically what i want to do is that, the Qt GUI will allow users to make selection and enter numbers, these inputs will be fed to R, already written .R files will perform