Dear all How should one parse all.equal() output? I'm specifically referring to the 'mean relative difference' messages. For example, > all.equal(pi, 355/113) [1] "Mean relative difference: 8.491368e-08"
But I'm not sure how to understand these messages. When they're close to 0 (or 1xe-16), then it's intuitive. But when they're big, > all.equal(1, 4) [1] "Mean relative difference: 3" > all.equal(2, 4) [1] "Mean relative difference: 1" > all.equal(3, 4) [1] "Mean relative difference: 0.3333333" the messages start making much less sense. I tried Wikipedia [1], but the description is cryptic, as is the help page. Also, Fox and Weisberg (2011) don't explain this particular message. Regards Liviu [1] http://en.wikipedia.org/wiki/Mean_difference#Relative_mean_difference -- Do you know how to read? http://www.alienetworks.com/srtest.cfm http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader Do you know how to write? http://garbl.home.comcast.net/~garbl/stylemanual/e.htm#e-mail ______________________________________________ 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.
