Good point, I have added a note and example to the documentation to this effect.
-- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 > -----Original Message----- > From: William Dunlap [mailto:wdun...@tibco.com] > Sent: Monday, July 18, 2011 3:10 PM > To: Greg Snow; jim holtman; Manuel K. > Cc: r-help@r-project.org > Subject: RE: [R] Number in interval > > Note that the precendence of %<=% is not the > same as that of <=, so you can be surprised by its > behavior in slightly more complex expressions: > > > z <- seq(1.2, len=5, by=.7) > > which( 2 %<=% z %<=% 3 ) # same as which(2<=z & z<=3) > [1] 3 > > which( 2 %<=% z %<=% 1.5*2 ) > Error in which(2 %<=% z %<=% 1.5 * 2) : > argument to 'which' is not logical > > > Bill Dunlap > Spotfire, TIBCO Software > wdunlap tibco.com > > > -----Original Message----- > > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > project.org] On Behalf Of Greg Snow > > Sent: Monday, July 18, 2011 1:39 PM > > To: jim holtman; Manuel K. > > Cc: r-help@r-project.org > > Subject: Re: [R] Number in interval > > > > A small modification of this would be: > > > > > library(TeachingDemos) > > > -3 %<=% z %<=% 3 > > > > Whether that is prettier or uglier than Jim's answer is in the eye of > the beholder (for longer > > variable names this version could save a few key strokes). > > > > -- > > Gregory (Greg) L. Snow Ph.D. > > Statistical Data Center > > Intermountain Healthcare > > greg.s...@imail.org > > 801.408.8111 > > > > > > > -----Original Message----- > > > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > > > project.org] On Behalf Of jim holtman > > > Sent: Sunday, July 17, 2011 3:29 PM > > > To: Manuel K. > > > Cc: r-help@r-project.org > > > Subject: Re: [R] Number in interval > > > > > > try this: > > > > > > > z <- c(-1.4,0.5,4.7) > > > > (z >= -3) & (z <= 3) > > > [1] TRUE TRUE FALSE > > > > > > > > > > > > > On Sun, Jul 17, 2011 at 10:54 AM, Manuel K. <b8220...@klzlk.com> > wrote: > > > > Hi all, > > > > > > > > I have an interval (e.g [-3,3]) and a numeric vector z (- > > > 1.4,0.5,4.7). How > > > > can I test whether an element in z lies between between -3,3? I > > > particularly > > > > need a TRUE/FALSE response. > > > > > > > > Thanks > > > > Manuel > > > > > > > > -- > > > > View this message in context: > http://r.789695.n4.nabble.com/Number- > > > in-interval-tp3673537p3673537.html > > > > Sent from the R help mailing list archive at Nabble.com. > > > > > > > > ______________________________________________ > > > > 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. > > > > > > > > > > > > > > > > -- > > > Jim Holtman > > > Data Munger Guru > > > > > > What is the problem that you are trying to solve? > > > > > > ______________________________________________ > > > 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. ______________________________________________ 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.
