* installing to library ‘/home/hornik/tmp/R.check/r-devel/Work/build/Packages’
* installing *source* package ‘fso’ ...
** R
** preparing package for lazy loading
** help
Warning: ./man/mfso.Rd:41: unknown macro '\mu'
Warning: ./man/mfso.Rd:41: unknown macro '\mu'
Warning: ./man/mfso.Rd:42: unknown macro '\mu'
Warning: ./man/mfso.Rd:85: unexpected '}'
Warning: ./man/plot.fso.Rd:99: unknown macro '\mu'
Warning: ./man/plot.mfso.Rd:93: unknown macro '\mu'
Warning: ./man/step.mfso.Rd:3: unexpected '}'
*** installing help indices
** building package indices ...
* DONE (fso)