similar to: Help: Using R from C

Hi folks: How do I get shell() or system() to run external programs in a particular directory (different from the current R working directory)? > version _ platform i386-pc-mingw32 arch x86 os Win32 system x86, Win32 status major 1 minor 3.0 year 2001 month 06

Thanks to Ross Ihaka and Bob Wheeler for responding to my earlier question. I looked into the Johnson system functions in SuppDists package. For now, I want to stick with the density(...) estimator, and so still need the variate lookup function. As per Ross' suggestion, I just did a numerical integration on the density object and used approxfun/splinefun to "lookup" the variate

Hi folks: This may be a stupid question, but I cannot seem to find a way to tell readBin that I want to read 2-byte integers from the connection. The input file is 150,720 bytes long containing 75,360 short (2-byte) integers. But specifying "integer" or "int" for what in readBin only returns me a vector of length 37680, leading me to believe that sizeof(integer) or

Hi folks: I used to load a DLL fine up until R 1.5.1. The same DLL dyn.loaded under R 1.6.2 prints the following warning message: > dyn.load("C:/Rajiv/Bin/rpdate.dll") Warning message: DLL attempted to change FPU control word from 8001f to 9001f > Any indication as to what the warning means, and whether I should be concerned about it? The DLL is made from a pure C code,

Thanks, Peter, and Prof. Ripley. My efforts last night was mostly futile except that it told me about the embedded newline in Built field. Prof. Ripley: how do I get your fixes? Can I just download R-2.0.0-patched? Rajiv -------- Rajiv Prasad Scientist, Hydrology Group Pacific Northwest National Laboratory, P.O. Box 999, MSIN K9-33 Richland, WA 99352 Voice: (509) 375-2096 Fax: (509) 372-6089

Hi folks: I think I'm having problems with figuring this one out: test1 <- function() { n <- 2 for(i in 1:n) { cat(paste("i =", i, "\n")); flush.console() n <- 5 # version 1 #n <<- 5 # version 2 #assign("n", 5, envir = environment(test1)) # version 3 } } I need the for(.) loop to run (say) n=5 times within the

Hi folks: Any idea when the density and angle arguments to polygon() are to be implemented? Or is there another way to achieve hatching fill patterns? TIA. Rajiv. -------- Rajiv Prasad Postdoctoral Research Associate, Hydrology Group Pacific Northwest National Laboratory, P.O. Box 999, MSIN K9-33 Richland, WA 99352 Voice: (509) 375-2096 Fax: (509) 372-6089 Email: rajiv.prasad at pnl.gov

Hi folks: I'm trying to compile R-2.0.0 on my Alpha (164SX; alphapca56-unknown-linux-gnu) running RedHat Linux 7.2 with gcc3.4.1. Here is where the compile terminates: .... .... building package 'tcltk' mkdir -p -- ../../../library/tcltk/R mkdir -p -- ../../../library/tcltk/demo mkdir -p -- ../../../library/tcltk/exec mkdir -p -- ../../../library/tcltk/man make[4]: Entering directory

Hi folks: I'm trying to compile R-2.0.0 on my Alpha (164SX; alphapca56-unknown-linux-gnu) running RedHat Linux 7.2 with gcc3.4.1. Here is where the compile terminates: .... .... building package 'tcltk' mkdir -p -- ../../../library/tcltk/R mkdir -p -- ../../../library/tcltk/demo mkdir -p -- ../../../library/tcltk/exec mkdir -p -- ../../../library/tcltk/man make[4]: Entering directory

Hi folks: Is there a lookup function that returns the variate given the cumulative probability for an object returned by the density(...) function? > mydata _ as.vector(mymatrix) > mydata.density _ density(mydata) > mydata.p80 _ lookup(mydata.density, p=0.8) # is there any function to accomplish this task? Thanks. Rajiv. -------- Rajiv Prasad, Postdoctoral Research Associate,

Hi, I have been studying the R manual on lists but cannot seem to create a simple R list in C - I keep on getting "'dimnames' applied to non-array" whenever I attempt to assign names to the list elements: Wanted output a list structure something like [ type="Bid", price=2.0, volume=1000 ] I can get up to a list of [ "Bid2, 2.0, 1000 ] But for the life of

Assume a C program invoked by .Call, that returns a list. Near the top of the program we allocate space for all the list elements. (It is my habit to use "xyz2" for the name of the R object and "xyz" for the pointer to its contents.) PROTECT(means2 = allocVector(REALSXP, nvar)); means = REAL(means2); PROTECT(u2 = allocVector(REALSXP, nvar)); u =

Thanks, Prof. Ripley. I downloaded the new admin.R and used that in place of one in R-2.0.0 build directory. The compile went fine. So, for the record, R-2.0.0 + Prof. Ripley's fixed admin.R compiles fine on "alphapca56-unknown-linux-gnu". ---- [rajiv@localhost rajiv]$ R R : Copyright 2004, The R Foundation for Statistical Computing Version 2.0.0 (2004-10-04), ISBN

Hi , For our production package i need to create a dataframein C . So I wrote the following code SEXP dfm ,head,df , dfint , dfStr,lsnm; *SEXP valueVector[2];* char *ab[3] = {"aa","vv","gy"}; int sn[3] ={99,89,12}; char *listnames[2] = {"int","string"}; int i,j; //============================= PROTECT(df = allocVector(VECSXP,2));

I believe there is a memory leak in isoreg in the current version of R, as I believe the following shows > gc() used (Mb) gc trigger (Mb) max used (Mb) Ncells 120405 3.3 350000 9.4 350000 9.4 Vcells 78639 0.6 786432 6.0 392463 3.0 > for(k in 1:100) { + + y <- runif(10000) + isoreg(x,y) + } > rm(x) > rm(y) > gc() used (Mb) gc

at lines 651 & 653 (integer_binary function): if (code == DIVOP || code == POWOP) ans = allocVector(REALSXP, n); else ans = allocVector(INTSXP, n); There are calls to warningcall() later in the function, which can trigger garbbage collection. Looks like the typical scenario where it seemed pretty safe to not PROTECT in the original version of the function but

This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_000_01C3738F.63DE3390 Content-Type: text/plain; charset="iso-8859-1" #I want to be able to create a new S4 class and read data into it using C code # Here is a very simple S4 object inheriting from "array", but with 5

Hi I'm trying to develop some C code to find the fixpoint of a contraction mapping, the code compiles and gives the right results when executed in R. However R-gui session is frequently terminated. I'm suspecting some access violation error due to the exception code 0xc0000005 In the error report windows 10 gives me. It is the first time I'm writing any C-code so I'm guessing I

Hi all I recently started to write a matrix exponentiation operator for R (by adding a new operator definition to names.c, and adding the following code to arrays.c). It is not finished yet, but I would like to solicit some comments, as there are a few areas of R's internals that I am still feeling my way around. Firstly: 1) Would there be interest in adding a new operator %^% that performs

Dear mailing list, I have a C function that gives me a wrong result when I run it under Windows 7. This is the code under Linux (RHEL5): > library(phenoTest) > data(epheno) > sign <- sample(featureNames(epheno))[1:20] > score <- getFc(epheno)[,1] > head(score) 1007_s_at 1053_at 117_at 121_at 1255_g_at 1294_at -1.183019 1.113544 1.186186 -1.034779 -1.044456