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Hi, I'm getting some strange behaviour when trying to use the power operator (a^b) when a is large and b is less than one: big <- .Machine$double.xmax big big^0.5 sqrt(big) > big <- 1.797693134862315708384e+308 > big^0.5 [1] Inf > sqrt(big) [1] 1.340781e+154 I'm guessing that this behaviour is not expected, or am I missing something about ^? Cheers Martyn >

Hi, Apologies if this is the wrong list to be sending this question to. I am trying to install a copy of the R tools required to create / compile packages on windows. After downloading Rtools from http://www.murdoch-sutherland.com/Rtools/ windows keeps complaining that "The setup files are corrupted". This has happened with both the Rtools213.exe and the Rtools212.exe downloads, and

...ersely makes it much more difficult to shoot yourself in the foot - and the Fortran compilers tend to pick up more problems at compile time than the C ones). Martyn -----Original Message----- From: MAURICE Jean - externe [mailto:jean-externe.maurice at edf.fr] Sent: 07 March 2016 15:46 To: Martyn Byng <martyn.byng at nag.co.uk> Cc: r-devel at r-project.org Subject: RE: ALLOCATE in a FORTRAN subroutine Hi Martyn, Many thanks for your answer. If I make it short : we can, once we know how to do it, 'drive' R from within FORTRAN for example to do a Myarray = seq(0, mydimension) in...

Hi, I am trying to package some code to use with R and wanted to call Rscript from within the Makevars file (I am trying to automate the setting of the location of a third party library depending on what is available / the system the package is being installed on). If I just have a simple Makevars containing PKG_LIBS= -lnag_nag -L/fserver/nagprod/FL22/fll6a22df/lib the package is built

Hi, I've just downloaded and installed R 2.14.0 using the windows binary on a 64bit windows machine running windows 7. Rterm / RGui work as expected, as does R CMD --help and R CMD BATCH --help however R CMD check --help returns no information and I seem to be unable to check a package. Various other options also seem to not be working as expected, i.e. R CMD REMOVE aa (where aa is

Hi, I am trying to install the latest version of the BRugs package on a 32 bit windows machine which, due to the set up, won't allow me to install it via the usual R GUI. Can anyone point me to a link from which I can download the relevant files that allow me to install it manually (most pages flagged by Google point back to a message saying it was removed from CRAN and to look in the

Full_Name: martyn byng Version: 1.6.2 OS: windows 2000 (professional) Submission from: (NULL) (62.231.145.253) I am having problems calling a fortran routine from within R. When the routine is called, R exits with an application error: "The instruction at 0x004a8b7d referenced memory at 0x200000015. The memory cou...

Hi Martyn, Many thanks for your answer. If I make it short : we can, once we know how to do it, 'drive' R from within FORTRAN for example to do a Myarray = seq(0, mydimension) in R once we have compute mydimension in FORTRAN. Is that correct ? If yes : it's too 'complicated' for the time I am hired (I mean I have been hired to do FORTRAN code not to learn R !). Second

Hi, I am having problems calling a fortran routine from within R. When the routine is called, R exits with an application error: "The instruction at 0x004a8b7d referenced memory at 0x200000015. The memory could not be written". The R code used to call the routine is: .Fortran("GTEST",a=as.integer(1),b=as.integer(3),c=as.integer(-10),d=as.inte ger(0),e=as.integer(0)) The

Hi, Until you get a more definitive answer, I will make an attempt to give some advice. When using an assumed sized array (i.e. REAL*8 array1(*)) you still need to allocate the memory prior to calling the Fortran subroutine, so you would still need to know its maximum length. Arrays created in a Fortran subroutine via the use of the ALLOCATE statements are not simple arrays (in the sense of C