You likely need to reinstall command line tools — Apple often uninstalls them after OS updates. Try running: xcode-select –install in the terminal. (Note that, even if you’re using the R-provided LLVM toolchain, it will still require access to the default system headers, and those are installed as part of the command line tools toolchain) … Read more
Unfortunately cubature does not ship the headers in inst/include, so you have to borrow that from them and do something like this in your code: typedef void (*integrand) (unsigned ndim, const double *x, void *, unsigned fdim, double *fval); int adapt_integrate( unsigned fdim, integrand f, void *fdata, unsigned dim, const double *xmin, const double *xmax, … Read more
I think you get that issue when your .libPaths() differ–in other words run the .libPaths() function to see the paths stored by R for its use. Then check where RInside is installed, and make sure Rcpp is installed there too. It is a setup issue. In other words, it should work if you have Rcpp … Read more
R is suited for large data sets, but you may have to change your way of working somewhat from what the introductory textbooks teach you. I did a post on Big Data for R which crunches a 30 GB data set and which you may find useful for inspiration. The usual sources for information to … Read more
(Sometime you need to use svn log … on files to see how dated they are…) I think a better use case is in my “port” of the C-based DEoptim to Rcpp / RcppArmadillo: RcppDE. In it, I allow the optimization routine to use either an R function (as DEoptim does) or a user-supplied compiled … Read more
Think it through — what does inline do? It creates a C/C++ function for you, then compiles and links it into a dynamically-loadable shared library. Where does that one sit? In R’s temp directory. So you tried the right thing by shipping the R frontend calling that shared library to the other process (which has … Read more
Thanks for the reproducible example. This is pretty basic R stuff. You can assign to selected elements of a vector (note an array has dimensions, and what you’ve given is a vector not an array): > pred_precipitation[pred_precipitation<0] <- 0 > pred_precipitation [1] 1.2091281 0.0000000 7.7665555 0.0000000 0.0000000 0.0000000 0.5151504 0.0000000 1.8281251 [10] 0.5098688 2.8370263 0.4895606 … Read more
They key is ‘proxy model’ — your xa really is the same memory location as your original object so you end up changing your original. If you don’t want that, you should do one thing: (deep) copy using the clone() method, or maybe explicit creation of a new object into which the altered object gets … Read more
On NFS file systems it is sometimes not obvious what things you have to close. The best way to avoid this is to use the –no-lock argument on the command line, i.e.: R CMD INSTALL –no-lock <pkg> From within R, you can do this from within your command using: install.packages(“Rcpp”, dependencies = TRUE, INSTALL_opts=”–no-lock”)
I had the same problem with the packages: raster, tmap and sf. Reinstalling the package Rcpp solved the problem: install.packages(‘Rcpp’) library(Rcpp)