* using log directory '/CRANPkg/check/mathgraph.Rcheck'
* using R version 2.1.0, 2005-04-18 
* checking for file 'mathgraph/DESCRIPTION' ... OK
* this is package 'mathgraph' version '0.9-5'
* checking if this is a source package ... OK
* checking whether package 'mathgraph' can be installed ... OK
* 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 replacement functions ... OK
* checking foreign function calls ... OK
* checking Rd files ... OK
* checking for missing documentation entries ... OK
* checking for code/documentation mismatches ... OK
* checking Rd \usage sections ... OK
* creating mathgraph-Ex.R ... OK
* checking examples ... ERROR
Running examples in mathgraph-Ex.R failed.
The error most likely occurred in:

> ### * adjamat
> 
> flush(stderr()); flush(stdout())
> 
> ### Name: adjamat
> ### Title: Adjacency Matrix of a Mathematical Graph
> ### Aliases: adjamat adjamat.mathgraph is.adjamat
> ### Keywords: math
> 
> ### ** Examples
> 
> adjamat(mathgraph(~ 1:3 * 3:5, dir=TRUE))
Error in strsplit(x, as.character(split), as.logical(extended), as.logical(fixed),  : 
	invalid split pattern '+'
Execution halted