similar to: Summary on graceful exit from fortran.

Is there a way to exit gracefully from dynamically loaded Fortran, (several layers down), if an error condition is detected? I.e. suppose I'm within a subroutine called by a subroutine, ..., called by .Fortran(); I want to give up gracefully if an error condition is detected. If I say something like if(x .gt. 42.d0) stop then indeed everything stops, i.e. R falls over. I'd

rolf at math.unb.ca said: > If I say something like > if(x .gt. 42.d0) stop > then indeed everything stops, i.e. R falls over. I'd ***like*** to be > able to print out an informative error message (which I guess could be > done - In Fortran: subroutine foo(..., ier) integer ier ier=0 ... if (x .gt. 42.d0) then ier=1 return endif

I wish to pass a vector ``y'', some of whose entries are NAs to a fortran subroutine which I am dynamically loading and calling by means of .Fortran(). The subroutine runs through the vector entry by entry; obviously I want to have it do one thing if y[i] is present and a different thing if it is missing. The way I am thinking of proceeding is along the xlines of: ymiss <- is.na(y)

This has nothing to do with R as such; I'm simply trying to exploit the vast resource of knowledge and expertise that resides in the R community. For my sins, I am teaching a course on Game Theory this term. Game Theory I know from ***nothing***. I am trying to learn the subject as I go along, staying perhaps half a step in front of the students. I am having considerable difficulty with

I have a Master's student working on a project which involves estimating parameters of a certain model via maximum likelihood, with the maximization being done via optim(). A phenomenon has occurred which I am at a loss to explain. If we use certain pairs of starting values for optim(), it simply returns those values as the ``optimal'' values, although they are definitely not

Many thanks to all who responded to my cri de coeur: Charles Annis, John Bollinger, Petr Pikal, Brian Ripley, Duncan Murdoch, Dan Nordlund, and Richard Heiberger. (I don't think --- I hope --- I haven't missed anyone.) The essential solution to my problem was indeed to eliminate that @#@$#@$^#@ ``.txt'' extension from the filename. I.e. the file must be called

Many thanks to those who answered my question about how to test for the existence of a file: Berwin Turlach, Jari Oksanen, Henrik Bengtsson, Uwe Ligges, and Joerg Maeder. The simplest solution is to use the built-in (!!!) function file.exists() which returns TRUE if the file exists, and FALSE if it doesn't. Like, duhhhhhh!!! It's exactly what I wanted. Special thanks to Berwin Turlach

Prof. Brian Ripley solved the problem. He wrote: > I was not aware that this works with relative paths for any version > of R. Try using a full path, which always works for me. I tried it using a full path, and bingo! It worked like a charm. Under Unix the relative path also works, but. Prof. Ripley also remarked: > If indeed your filesystem is readonly, you will have problems

I'd just like to put in my two bob's worth: The ***only*** thing for which I prefer SAS to R/Splus, but it's a very important thing, is the analysis of mixed linear models. One can do the same analyses in both languages. The difference is that the SAS syntax for specifying such a model, and its output, is comprehensible to the human mind, which is what I'm equipped with. The

Hi, I dunno much about exploiting, but I was wondering about the setuid root program 'opiepasswd' to use one-time-passwords. When having a seed of (null) and a sequence of -1, I get a segfault. Kernel/base: FreeBSD lama.inet-solutions.be 4.8-RELEASE-p4 FreeBSD 4.8-RELEASE-p4 #0: Sun Aug 31 21:00:38 CEST 2003 root@lama.inet-solutions.be:/usr/obj/usr/src/sys/LAMA i386 Make.conf:

I'm having a dynamic loading problem that seems to be caused by exponentiation (the ** operator in Fortran/ratfor). This can be illustrated by the following toy example: ===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+=== % cat foo.r subroutine foo(x,n) x = x**n return end % f77 -c foo.r /tmp/ratfor.06661.0.f: foo: % R CMD SHLIB -o foo.so foo.o gcc -G -o

Hi. I'm looking to create a user-friendly program built around some R methods I've written. The program should be as easy to install and use as possible and will be built around a GUI. This program will be cross-platform; that's crucial. I'm familiar with Java and its GUI packages, I've been looking at the JRI package (interfaces R with Java) but I'm a little uneasy about

Hi, please excuse the most likely very trivial question, but I'm having no idea where to find related information: I try to recapitulate very simple plotting behavior of Excel within R but have no clue how to get where I want. I have tab delimited data like cell treatment value line a treat1 4 line a treat2 3 line b treat1 8 line b treat2 11 I'd like to have a plot (barplot), that

With the release of dovecot 2.0, the community of the Dovecot mailling list, and us at Shelton Computers, would sincerely like to thank the developers of Dovecot. For, if it were not for you, we would be stuck with Courier and would not have the impressive features of Sieve, as opposed to the unmanageable scripts, by end users, of maildrop. *Our gratitude goes to, but not limited to:* *Timo

I'm trying to prepare some cross tabs, looking at a number of variables against a variable "connector" which has 2 values: "OD Passenger" and " Connector". When I produce a xtabs one way I have observations under "Connector" but against a different variable "Connector" shows all 0 values. What is wrong? I've looked into the na commands

Hi r-help, I have some troubles reading fortran binary file(from mm5) in R. Here is what I have done. 1. Use a fortran subroutine to read this file in R. The subroutine is as the following. subroutine freadmm5(filenamet,out2d) integer iflag,var1,miy,mjx,mkz,mt,z,t character*4 crdt,corder character*24 chrdate character*9 cname,var character*25

I've been trying to get my head around using matrices in calls to .C(). As an exercise I wrote some code to calculate the product of two matrices. (Well, it makes it easy to check if one is getting the right answer!) After obtaining some advice from a Certain Very Wise Person at Oxford, (to find out how to deal with array indexing in C functions called from elsewhere) I wrote the following

Hi. in the Rails Agile book here''s what was happening: >>> module StoreHelper def hidden_div_if(condition, attributes = {}) if condition attributes["style" ] = "display: none" end attrs = tag_options(attributes.stringify_keys) "<div #{attrs}>" end # format_price method ... end Note that we cheated slightly here. We copied code from the Rails

1) Please ignore the patch for wxMouseEvent.h. Including this causes the build to fail. 2) Attached are several files to patch some things to get the bigdemo working (better): Added a generic typemap for converting ruby arrays into point arrays. Added a typedef for wxDash Corrected/expanded the typemap for GetTextExtent Added GetMultiLineTextExtent prototype (there are some others missing I

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