Running examples in ‘support.BWS-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: bws.dataset
> ### Title: Creating a data set suitable for BWS analysis on the basis of
> ###   counting and modeling approaches
> ### Aliases: bws.dataset
> ### Keywords: manip
> 
> ### ** Examples
> 
> ## load packages
> require(DoE.base) # include oa.design() used to generate a two-level OMED
Loading required package: DoE.base
Loading required package: grid
Loading required package: conf.design
Error: package or namespace load failed for ‘DoE.base’ in dyn.load(file, DLLpath = DLLpath, ...):
 unable to load shared object '/home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/MASS/libs/MASS.so':
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/MASS/libs/MASS.so: failed to map segment from shared object
> require(crossdes) # include find.BIB() used to generate a BIBD
Loading required package: crossdes
Loading required package: AlgDesign
Error: package or namespace load failed for ‘AlgDesign’ in dyn.load(file, DLLpath = DLLpath, ...):
 unable to load shared object '/home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/AlgDesign/libs/AlgDesign.so':
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/AlgDesign/libs/AlgDesign.so: failed to map segment from shared object
Failed with error:  ‘package ‘AlgDesign’ could not be loaded’
> require(survival) # include clogit() used to analyze responses
Loading required package: survival
Error: package or namespace load failed for ‘survival’ in dyn.load(file, DLLpath = DLLpath, ...):
 unable to load shared object '/home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/Matrix/libs/Matrix.so':
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/Matrix/libs/Matrix.so: failed to map segment from shared object
> 
> ## example 1: BWS using a two-level OMED
> ## suppose that ten respondents answered twelve BWS questions valuing nine items
> 
> # create a two-level OMED with nine factors
> set.seed(123) # set seed for random number generator
> des1 <- oa.design(nfactors = 9, nlevels = 2)
Error in oa.design(nfactors = 9, nlevels = 2) : 
  could not find function "oa.design"
Execution halted