On Fri, 26 Jun 2015, Marc Schwartz wrote: > ess-tracebug is not an R package on CRAN, but an ESS package: > > http://ess.r-project.org/Manual/ess.html#ESS-tracebug Marc, Oops! Mea culpa. I installed ess several years ago and just learned that ess-tracebug exists. Thanks for the URL. Rich