Paul Johnson: > In R version 2.7.0 (2008-04-22) as.numeric(".") returns zero. > >> as.numeric(".") > [1] 0 Seems to be fixed already. In R version 2.7.0 Patched (2008-06-12 r45898): $ as.numeric(".") [1] NA Warning message: NAs introduced by coercion -- Karl Ove Hufthammer