I suspect one possible reason is that while I unzip the file .tar.gz, it
destroys the structure between files as the manual indicated. But there seems
no unix-like environment. I tried the cmd command, but it does not recognize
tar command. Section 6.3 of the manual said that install.packages can install a
source package from a local '.tar.gz' file by setting argument repos to NULL.
But the manual did not tell me where to put this .tar.gz file in the first
place. How do R find this file?
Another idea is that I saw four .R files under the folder of R in the zip file.
I suspect all necessary functions is defined in these four .R documents. So I
ran them and tried a mini example of applying the function
---------------------------------------------------------------------
cvec <- c(1,2,3)
Amat <- matrix(c(-1,1,1,-1,3,-1),byrow=TRUE,nc=3)
bvec <- c(20,-30)
ub <- c(40,Inf,Inf)
res <- Rcplex(cvec,Amat,bvec,ub=ub,objsense="max",sense=c('L','G'))
print(res)
------------------------------------------------------------------------
This gives me the error message of
----------------------------------------------------------------------
Error in .Call("Rcplex", as.integer(numcols), as.integer(numrows),
as.integer(objsensei), :
C symbol name "Rcplex" not in load table
Error in .C("Rcplex_free") :
C symbol name "Rcplex_free" not in load table
------------------------------------------------------------------------------
________________________________
From: Uwe Ligges <lig...@statistik.tu-dortmund.de>
Cc: David Winsemius <dwinsem...@comcast.net>; "r-help@r-project.org"
<r-help@r-project.org>
Sent: Wednesday, February 22, 2012 4:04 AM
Subject: Re: [R] installing the package Rcplex
On 22.02.2012 03:33, zheng wei wrote:
> Thanks.
>
> I was just reminded by the tech support in my university that cplex is an
> independent software owned by ILOG, which in turn is now owned by IBM. I
> suceeded in installing the software cplex under the directory of "C:/Program
> Files/IBM/ILOG/CPLEX_Studio_Academic124/cplex"
> I guess Rcplex is an R package to utilize the software cplex. I have changed
> the path "/c/ilog/cplex111" to the above path. My question is how to finally
> and effectively install the package of Rcplex?
You have been asked alreeady to read the R Installation and
Administration manual.
Uwe Ligges
>
> Thanks,
> Wei
>
>
>
> ________________________________
> From: Uwe Ligges<lig...@statistik.tu-dortmund.de>
> Cc: David Winsemius<dwinsem...@comcast.net>;
> "r-help@r-project.org"<r-help@r-project.org>
> Sent: Tuesday, February 21, 2012 2:14 PM
> Subject: Re: [R] installing the package Rcplex
>
>
>
> On 21.02.2012 19:57, zheng wei wrote:
>> Thank you both for helping. Still could not figure out.
>>
>> I was contacting different supporting IT departments in my university but
>> did not get any help.
>>
>> For the moment, I just want to what does the instruction of the package
>> means. You could find this instruction on page
>> http://cran.r-project.org/web/packages/Rcplex/INSTALL
>>
>>--------------------------------------------------------------------------------------------------
>> ***WINDOWS***
>> Installation on Windows systems is done by using the provided
>> Makevars.win file in the src directory. It contains the following
>> lines:
>> PKG_CPPFLAGS=-I<CPLEX_DIR>/include
>> PKG_LIBS=-L<CPLEX_DIR>/lib/x86_windows_vs2008/stat_mda -lcplex111 -lm
>> where<cplex_dir> is the cplex installation directory
>> e.g. /c/ilog/cplex111. Please edit your Makevars.win file accordingly.
>> We have successfully tested this procedure with CPLEX 11.1 on 32-bit
>> Windows XP.
>> --------------------------------------------------------------------------------------------------
>>
>>
>> I can find the file and see the codes. But what new path should I put, and
>> what to do next?
>
> The path to your CPLEX installation?
>
> Uwe Ligges
>
>
>
>
>>
>> Thanks,
>> Wei
>>
>>
>> ________________________________
>> From: Uwe Ligges<lig...@statistik.tu-dortmund.de>
>> To: David Winsemius<dwinsem...@comcast.net>
roject.org>
>> Sent: Monday, February 20, 2012 6:01 AM
>> Subject: Re: [R] installing the package Rcplex
>>
>>
>>
>> On 20.02.2012 01:54, David Winsemius wrote:
>>>
>>> On Feb 19, 2012, at 7:45 PM, zheng wei wrote:
>>>
>>>> I did not know this before. I installed it as you suggested. what to
>>>> do next?
>>>
>>> Read the Installation Manual?
>>>
>>
>> And don't forget this is a source package for which no CRAN Windows
>> binary exists, hence it may be not that straightforward to get it done
>> and you wil have to read the INSTALL file from the source package carefully.
>>
>> Uwe Ligges
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