Please show us at least the prototype of the C function(s) being called, and
the .C call in the R code.
Just to make sure: The first argument to .C() should be the name of the C
function, not the name of the C source file.
Andy
> From: xt_wang at cse.concordia.ca
>
> hello, everybody,
>
> I create a package by myself named "var" on Linux system. I
> attach a C code
> which uses "R_ext/Lapack.h" in directory "src". But
when I
> carry out " R CMD
> check var", it shows
>
> > wxt0124()
> Error in .C("wxt1221", PACKAGE = "var") : C function
name not
> in DLL for package
> var
> Execution halted
>
> Could you tell me what is the problem?
>
> Maggie
>
>
> [credsim at confsys myrpackages]$ R CMD check var
> * checking for working latex ... OK
> * using log directory '/home/credsim/src/myrpackages/var.Rcheck'
> * checking for file 'var/DESCRIPTION' ... OK
> * checking if this is a source package ... OK
>
> * Installing *source* package 'var' ...
> ** libs
> gcc -I/usr/lib/R/include -I/usr/local/include
> -D__NO_MATH_INLINES -mieee-fp
> -fPIC -O2 -g -march=i386 -mcpu=i686 -c wxt1221.c -o wxt1221.o
> wxt1221.c: In function `Matrix_A_12':
> wxt1221.c:774: warning: passing arg 3 of `dpotrf_' from
> incompatible pointer
> type
> wxt1221.c:775: warning: passing arg 4 of `dpotrs_' from
> incompatible pointer
> type
> wxt1221.c: In function `Matrix_A_1':
> wxt1221.c:1038: warning: passing arg 3 of `dpotrf_' from
> incompatible pointer
> type
> wxt1221.c:1039: warning: passing arg 4 of `dpotrs_' from
> incompatible pointer
> type
> wxt1221.c: In function `Matrix_A_2':
> wxt1221.c:1290: warning: passing arg 3 of `dpotrf_' from
> incompatible pointer
> type
> wxt1221.c:1291: warning: passing arg 4 of `dpotrs_' from
> incompatible pointer
> type
> gcc -shared -L/usr/local/lib -o var.so wxt1221.o
> -L/usr/lib/R/bin -lRlapack
> -L/usr/local/lib -L/usr/lib/gcc-lib/i386-redhat-linux/3.2.2
> -L/usr/lib/gcc-lib/i386-redhat-linux/3.2.2/../../..
> -lfrtbegin -lg2c -lm
> -lgcc_s
> ** R
> ** help
> Warning: \alias{wxt0124} already in wxt0124.Rd -- skipping
> the one in wxt1221.Rd
> >>> Building/Updating help pages for package 'var'
> Formats: text html latex example
> wxt0124 text html latex example
> wxt1221 text html latex example
> * DONE (var)
>
> * checking package directory ... OK
> * checking for portable file names ... OK
> * checking for sufficient/correct file permissions ... OK
> * checking DESCRIPTION meta-information ... OK
> * checking package dependencies ... OK
> * checking index information ... OK
> * checking package subdirectories ... OK
> * checking R files for syntax errors ... OK
> * checking R files for library.dynam ... OK
> * checking S3 generic/method consistency ... OK
> * checking for replacement functions with final arg not named
> 'value' ... OK
> * checking foreign function calls ... OK
> * checking Rd files ... OK
> * checking for missing documentation entries ... WARNING
> Undocumented code objects:
> b
> All user-level objects in a package should have documentation entries.
> See chapter 'Writing R documentation files' in manual 'Writing
R
> Extensions'.
> * checking for code/documentation mismatches ... OK
> * checking Rd \usage sections ... OK
> * checking for CRLF line endings in C sources/headers ... OK
> * creating var-Ex.R ... OK
> * checking examples ... ERROR
> Running examples in var-Ex.R failed.
> The error most likely occurred in:
>
> > ### * wxt0124
> >
> > flush(stderr()); flush(stdout())
> >
> > ### Name: wxt0124
> > ### Title: Estimation of Optimal Variance Components in CCC Model
> > ### Aliases: wxt0124
> > ### Keywords: array
> > > wxt0124()
> Error in .C("wxt1221", PACKAGE = "var") : C function
name not
> in DLL for package
> var
> Execution halted
>
> > ### ** Examples
> >
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
> http://www.R-project.org/posting-guide.html
>
>
>