On 18-Feb-06 Duncan Murdoch wrote: > On 2/18/2006 1:13 AM, Robert W. Baer, Ph.D. wrote: >> Try: >> (X>1 & Y<1) | (X<1 & Y>1) > > This is a minor stylistic suggestion: when translating the > mathematical expression (a < b < c), write it as > (a < b) & (b < c). It has no effect on the outcome, but > keeping the inequalities in the same direction makes > the meaning more obvious. > > If you do this, your expression becomes > > (Y<1 & 1<X) | (X<1 & 1<Y) > > and it's clear at a glance what's going on.
And, as a follow-up, can I suggest for ultimate clarity [ :) ] (X<1 | Y<1) & (1<X | 1<Y) Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <[EMAIL PROTECTED]> Fax-to-email: +44 (0)870 094 0861 Date: 19-Feb-06 Time: 10:16:55 ------------------------------ XFMail ------------------------------ ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
