search for: 9akdm9

Displaying 11 results from an estimated 11 matches for "9akdm9".

2010 Apr 30
2
RInside & child threads
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
2010 Apr 28
2
JRI API: sourcing from Java String
Hi all, I have been using 'source(filename)' to load R code from a file object. However, now I have a special case where I don't have a file since I am loading an R script from a Jar file. I would like to avoid creating temporary files. Is there a way to use the 'source' command with a Java String? Are there any other, better ways to do that? Ralf
2010 May 08
1
Error in RImageJ
Hello everybody, I'm running R under Mac OS 10.6.3 on a MacBook 2.16 GHz Intel Core 2 Duo. I've recently installed R 2.11.0 and the RImageJ library v. 0.1-142. When trying to follow the example given in the package manual and I get the following error: download.file( "http://www.google.fr/intl/en_en/images/logo.gif", dest = "google.gif" ) trying URL
2010 May 11
2
make: Nothing to be done for `all'.
Hi, I just bought new macbook pro 10.6.3. I am trying to use some old c code that used to work. I tried to recompile the code. In the directory with code I used R CMD SHLIB hello.c and get the error make: Nothing to be done for `all'. I have tried reinstalling Xcode and R but I am still having this problem. Any suggestions? -- View this message in context:
2010 Apr 22
2
RUnit bug?
There appears to be a bug in RUnit. Given a testsuite testsuite.math, say, when I run: runTestSuite(testsuite.math) this works fine, provided there are no extraneous files in the unit test subdirectory. But if there are any Emacs temp files (with names that end with '~') then runTestSuite gets confused and tries to run functions from the temp files as well. [[alternative HTML version
2010 Apr 27
2
Resolving functions using R's namespace mechanism can double runtime
It appears that the runtime for an R script can more than double if a few references to a function foo() are replaced by more explict references of the form pkgname::foo(). The more explicit references are of course required when two loaded packages define the same function. I can understand why use of this mechanism is not free in an interpreted environment like R, but the cost seems rather
2010 May 20
1
Use of R and Rscript in configure/Makevars in packages
We have seen problems with a number of packages which use R/Rscript to run R code in configure or makefiles. (a) You must give a full path: there need be no version of R in the path, and if there is it might not be the version/build of R under which package installation is being done. So the general form is to use ${R_HOME}/bin/R to select the right version. And since ${R_HOME} might
2010 Apr 13
3
Inline Package: void vs return type functions
Dear all, After having a look at the "inline" package and also going through the "Rcpp" package which is tighty related to it, it came to me this question: 1) my C/ C++ code has a return type (let say a double[][] or a user define class) 2) I am working with an extensive library built by someone else and I don't have the time/knowledge to change it by means of working
2010 Apr 21
2
suggestion how to use memcpy in duplicate.c
>From copyVector in duplicate.c : void copyVector(SEXP s, SEXP t) { int i, ns, nt; nt = LENGTH(t); ns = LENGTH(s); switch (TYPEOF(s)) { ... case INTSXP: for (i = 0; i < ns; i++) INTEGER(s)[i] = INTEGER(t)[i % nt]; break; ... could that be replaced with : case INTSXP: for (i=0; i<ns/nt; i++) memcpy((char *)DATAPTR(s)+i*nt*sizeof(int),
2010 Apr 29
2
Split a vector by NA's - is there a better solution then a loop ?
Hi all, I would like to have a function like this: split.vec.by.NA <- function(x) That takes a vector like this: x <- c(2,1,2,NA,1,1,2,NA,4,5,2,3) And returns a list of length of 3, each element of the list is the relevant segmented vector, like this: $`1` [1] 2 1 2 $`2` [1] 1 1 2 $`3` [1] 4 5 2 3 I found how to do it with a loop, but wondered if there is some smarter (vectorized) way
2010 Apr 17
1
Error message when trying to install Rcmdr
I am trying to install Rcmdr on my ubuntu machine, but keep getting the following error messages: ERROR: failed to lock directory ?/home/thedoctor/R/i486-pc-linux-gnu-library/2.10? for modifying Try removing ?/home/thedoctor/R/i486-pc-linux-gnu-library/2.10/00LOCK? ERROR: failed to lock directory ?/home/thedoctor/R/i486-pc-linux-gnu-library/2.10? for modifying Try removing