r-help-boun...@r-project.org napsal dne 21.04.2009 10:00:06: > Petr PIKAL <petr.pikal <at> precheza.cz> writes: > > > Maybe that is because of Excel is so widespread now and gives expected
> > results (it probably silently rounds all decimal numbers before > > calculation). > > Marc Schwartz already reminded me of that one, and it's a good point > to explicitly mention in lectures. > > I suggest to extend R by introducing %==% as "being Excellently equal". It helps but not in all cases > (0.7-0.3)-.4>0 [1] FALSE > (0.7-0.3)-.4<0 [1] TRUE > There always could be different issues with not exact representation of decimals. So educated user or internal rounding could help but I am not sure if later is desired. Regards Petr > > Dieter > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
