[Rd] for help on building a R package with several R function and a bunch of c, c++
Hope I can get quick help from here, I have a bunch of c, c++ included main function and makefile. It works well on both UNIX and windows. I tried to build R package which include this C++ program and several other R functions. These R functions here are independent of c++ code. I prefer to define one R function to call this c++ program. I know how to build R package with just R function, But I don't know how to handle those c++, c and makefile after I copied them in /src. I am reading manual Writing R Extensions, I didn't catch the key point . Do you guys anybody know easy way to do it?. Thank you in advance! Alex __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] for help on building a R package with several R function and a bunch of c, c++
Yes! that is what I am looking for. When I post my question, I said I cannot
catch the key point in Writing R Extensions.
Follow your suggestion, I almost have reached my goal although I passed the R
CMD check mypackage. Before I install it (I need ask UNIX adminstrator to do
it), I check the package, I got the information
dyn.load(tranptest.so)
filenames-c(Mrklist.txt,CCdata.txt,outputfile)
param-c(1,0,1,0,1,1)
.C(tranptest,as.character(filenames),as.double(param))
*** caught segfault ***
address 0, cause 'memory not mapped'
Traceback:
1: .C(tranptest,as.character(filenames), as.double(param))
Do you have any clue about the error? I think it is very close tothe end.
Thank you so much . You save me a tons of time,
Alex
--- On Mon, 3/8/10, Simon Urbanek simon.urba...@r-project.org wrote:
From: Simon Urbanek simon.urba...@r-project.org
Subject: Re: [Rd] for help on building a R package with several R function
and a bunch of c, c++
To: alex46...@yahoo.com
Cc: Romain Francois rom...@r-enthusiasts.com, r-devel@r-project.org,
Dirk Eddelbuettel e...@debian.org
Date: Monday, March 8, 2010, 12:53 PM
Alex,
On Mar 8, 2010, at 12:16 , alex46...@yahoo.com
wrote:
I built R package with only R code before, this is
first time I build R package with mixed R code and C, C++
code. I would try Rcpp on our center UNIX, before I ask the
administrator to install it, I need confirm several issue
are right. Thank you for you patient.
1, I change main function as a general function with
certain name such as void tranptest(char* filename[],
double* para[]), and copy this file and other related c,
c++ h, program to /src, and removed makefile.
Yes, that's perfect - for the kind of usage you don't need
Rcpp at all - R supports C++ sources out of the box. Just
make sure your tranptest function is either in a .c file or
you put
extern C
in front of it if it's in .cpp , e.g:
foo.cpp:
extern C void tranptest(char **fn, double *par) {
...
}
2, I noticed there is Makevars after I ran
Rcpp.package.skeleton,
do I need modify this file before I run R CMD build?
what I need do for rcpp_hello_world.cpp
rcpp_hello_world.cpp? it is template file handled by the
program or it is for me to edit it as template?
3, Do I need write a R function such as
tranptest-function(inputfile, ctlfile,outfile,
param1,param2,param3)
{
filenames-c(inputfile,ctlfile,outfile)
params-as.vector(c(param1, param2,param3))
.C(tranptest,
as.character(filenames),as.double(params))
}
before I run R CMD build? if so, that means I put this
R function in /R?
yes, in R/foo.R (replace foo by any name you want)
4, Do I need do anything to run library.dyname to load
those complied objects?
If you have a namespace just add
useDynLib(foo)
where foo is the name of your package. If you don't have
a namespace (or don't kwno what that is ;)) just add a file
R/zzz.R with the following content to your package:
.First.lib - function(libname, pkgname)
library.dynam(foo, pkgname, libname)
where foo is the name of your package.
Where I can make sure it successful and I can use
.C(tranptest,) in R before the wholepackage
installed?
It's really simple - you don't need to install the package
to test it. Assuming foo is the name of your package:
Build the sources:
R CMD SHLIB -o foo.so *.c*
start R in the same directory:
R
# load the library you just compiled
dyn.load(foo.so)
# test your code
.C(tranptest, c(file1, file2), as.double(1,2,3,4))
Cheers,
Simon
Alex
--- On Mon, 3/8/10, Romain Francois rom...@r-enthusiasts.com
wrote:
From: Romain Francois rom...@r-enthusiasts.com
Subject: Re: [Rd] for help on building a R package
with several R function and a bunch of c, c++
To: alex46...@yahoo.com
Cc: r-devel@r-project.org,
Dirk Eddelbuettel e...@debian.org
Date: Monday, March 8, 2010, 2:47 AM
Hi,
Yes, the problem is with spaces in path names.
This has
been fixed and
will appear as Rcpp 0.7.8 in a few days.
If you are in a rush, you can build it from svn,
or quote
the path that
is returned from CxxFlags.
Feel free to get back to us with more questions,
although
I'd encourage
you to use the dedicated Rcpp-devel mailing list
:
https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
Romain
On 03/08/2010 04:20 AM, alex46...@yahoo.com
wrote:
Thank you for your help. So far what I
did on
my notebook as follows. My OS is windows7.
Â
I downloaded Rcpp windows version, and load
library(Rcpp) then.
Â
1, Change main funnction to f1.cpp, remove
makefile.
2 ,run
Rcpp.package.skeleton(name=test,list=c(rec1.R,rect2.R))
3, edit  /man, /R, copied my exist fileÂ
whch I
have done sucessfully without any c++
program
before.
4, copy f1.cpp and all other related
cpp and c
into /src/
5. Rcmd build --binary test
Â
It showed--
Â
Re: [Rd] for help on building a R package with several R function and a bunch of c, c++
I fixed the problem, it is related to my C++ code when I change main function to gneral function. You gave a great help! Thank you! Simon. have a good night! Alex __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] for help on building a R package with several R function and a bunch of c, c++
Thank you for your help. So far what I did on my notebook as follows. My OS is windows7.  I downloaded Rcpp windows version, and load library(Rcpp) then.  1, Change main funnction to f1.cpp, remove makefile. 2 ,run Rcpp.package.skeleton(name=test,list=c(rec1.R,rect2.R)) 3, edit  /man, /R, copied my exist file whch I have done sucessfully without any c++ program before. 4, copy f1.cpp and all other related cpp and c into /src/ 5. Rcmd build --binary test  It showed--  making DLL gcc -lâC:/PROGRA~2/R/R-210~1.1/include,âC:/PROGRA~2/R/R-210~1.1/bin/Rscript -e' Rcpp:::CxxxFlags'` -03 -Wall -std =gnu -999 -c cranbombind.c -o cranbombind.o  gcc.exe: **\Documents/R/win-library/2.10/Rcpp/lib: No such file or directory... I checked the path, it did have C:\Users\alex **\Documents\R\win-library\2.10\Rcpp\lib  I don't know how I can fix the problem. do you think it could be problem there is a space between my first name and last name..  All I tried are on my own PC at home , I will tryon other  PC in my office.  Do you have suggestion?. Thanks,  Alex --- On Sun, 3/7/10, Romain Francois rom...@r-enthusiasts.com wrote: From: Romain Francois rom...@r-enthusiasts.com Subject: Re: [Rd] for help on building a R package with several R function and a bunch of c, c++ To: alex46...@yahoo.com Cc: Dirk Eddelbuettel e...@debian.org, r-devel@r-project.org Date: Sunday, March 7, 2010, 3:59 AM On 03/06/2010 03:27 AM, alex46...@yahoo.com wrote: I think the first question should be how to build a R function to call a bunch of C ,C++ which include one main program, and a makefile. My goal to build a R package will be next step. You should jump straight to making a package. You are making you life difficult with this main program makefile model. Install Rcpp and try to use the Rcpp.package.skeleton, this will create a simple package that uses some C++ classes from Rcpp, as well as an R function that calls them. I read Rcpp , I am not sure if RcppResultSet can solve my problem or other function. Once I make sure it work I need ask UNIX adminstrator to install it. We don't know what your problem is. We can answer a question, but we cannot guess the question for you. Rcpp works, please refer to our unit tests, for example look at this vignette: http://cran.r-project.org/web/packages/Rcpp/vignettes/Rcpp-unitTests.pdf I think it shouldn't be very complex, as I know to build a R function easy with one C function. Thanks you for yout attention! Alex --- On Fri, 3/5/10, Dirk Eddelbuettele...@debian.org wrote: From: Dirk Eddelbuettele...@debian.org Subject: Re: [Rd] for help on building a R package with several R function and a bunch of c, c++ To: alex46...@yahoo.com Cc: r-devel@r-project.org Date: Friday, March 5, 2010, 8:25 PM On 5 March 2010 at 13:15, alex46...@yahoo.com wrote: | Hope I can get quick help from here, I have a bunch of c, c++ included main function and makefile. It works well on both UNIX and windows. I tried to build R package which include this C++ program and several other R functions. These R function here are independent of c++ code. I prefer to define one R function to call this c++ program (main function). | | I know how to build R package with just R function, but I don't know how to handle those c++ c code after I copied those code in ./src, I am reading manual Writing R Extensions , but I did n't catch the key point . Do you know any easy way to do it? , When you asked _that exact same question_ this morning on r-help, you got the following answer:     From: Whit Armstrongarmstrong.w...@gmail.com     To: alex46...@yahoo.com     Cc: r-h...@r-project.org     Subject: Re: [R] for help on building a R package with several R function and a bunch of c, c++     Date: Fri, 5 Mar 2010 10:33:54 -0500     Pick up Rcpp, make your life easier.     http://dirk.eddelbuettel.com/code/rcpp.html     -Whit     On Fri, Mar 5, 2010 at 9:19 AM,alex46...@yahoo.com wrote:      Hope I can get quick help from here, I have a bunch of c, c++ included main function and makefile. It works well on both UNIX and windows. I tried to build R package which include this C++ program and several other R functions. R function here are independent c++ code. I prefer to define one R function to call this c++ program.          Do you know any easy way to do it? I am reading manual Writing R Extensions, I didn't catch the key point. I know how to build R package with just R function, If I put all c++ code and makefile in /src...what I need do?          Thank you in advance!          Alex Now, can you let us know    a) what part of the answer was unclear to you, and    b) what made you think you needed to repost _the identical question_ here | Thank you in advance! You're welcome. Dirk --
[Rd] for help on building a R package with several R function and a bunch of c, c++
Hope I can get quick help from here, I have a bunch of c, c++ included main function and makefile. It works well on both UNIX and windows. I tried to build R package which include this C++ program and several other R functions. These R function here are independent of c++ code. I prefer to define one R function to call this c++ program (main function). I know how to build R package with just R function, but I don't know how to handle those c++ c code after I copied those code in ./src, I am reading manual Writing R Extensions , but I did n't catch the key point . Do you know any easy way to do it? , Thank you in advance! Alex __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] for help on building a R package with several R function and a bunch of c, c++
I think the first question should be how to build a R function to call a bunch of C ,C++ which include one main program, and a makefile. My goal to build a R package will be next step. I read Rcpp , I am not sure if RcppResultSet can solve my problem or other function. Once I make sure it work I need ask UNIX adminstrator to install it. I think it shouldn't be very complex, as I know to build a R function easy with one C function. Thanks you for yout attention! Alex --- On Fri, 3/5/10, Dirk Eddelbuettel e...@debian.org wrote: From: Dirk Eddelbuettel e...@debian.org Subject: Re: [Rd] for help on building a R package with several R function and a bunch of c, c++ To: alex46...@yahoo.com Cc: r-devel@r-project.org Date: Friday, March 5, 2010, 8:25 PM On 5 March 2010 at 13:15, alex46...@yahoo.com wrote: | Hope I can get quick help from here, I have a bunch of c, c++ included main function and makefile. It works well on both UNIX and windows. I tried to build R package which include this C++ program and several other R functions. These R function here are independent of c++ code. I prefer to define one R function to call this c++ program (main function). | | I know how to build R package with just R function, but I don't know how to handle those c++ c code after I copied those code in ./src, I am reading manual Writing R Extensions , but I did n't catch the key point . Do you know any easy way to do it? , When you asked _that exact same question_ this morning on r-help, you got the following answer: From: Whit Armstrong armstrong.w...@gmail.com To: alex46...@yahoo.com Cc: r-h...@r-project.org Subject: Re: [R] for help on building a R package with several R function and a bunch of c, c++ Date: Fri, 5 Mar 2010 10:33:54 -0500 Pick up Rcpp, make your life easier. http://dirk.eddelbuettel.com/code/rcpp.html -Whit On Fri, Mar 5, 2010 at 9:19 AM, alex46...@yahoo.com wrote: Hope I can get quick help from here, I have a bunch of c, c++ included main function and makefile. It works well on both UNIX and windows. I tried to build R package which include this C++ program and several other R functions. R function here are independent c++ code. I prefer to define one R function to call this c++ program. Do you know any easy way to do it? I am reading manual Writing R Extensions, I didn't catch the key point. I know how to build R package with just R function, If I put all c++ code and makefile in /src...what I need do? Thank you in advance! Alex Now, can you let us know a) what part of the answer was unclear to you, and b) what made you think you needed to repost _the identical question_ here | Thank you in advance! You're welcome. Dirk | Alex | | __ | R-devel@r-project.org mailing list | https://stat.ethz.ch/mailman/listinfo/r-devel -- Registration is open for the 2nd International conference R / Finance 2010 See http://www.RinFinance.com for details, and see you in Chicago in April! [[alternative HTML version deleted]] __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
