From: Greg Snow <Greg.Snow_at_imail.org>

Date: Thu, 05 Feb 2009 14:40:28 -0700

Date: Thu, 05 Feb 2009 14:40:28 -0700

Or use range( 0, y1, y2, y3, na.rm=TRUE, finite=TRUE )

-- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.snow_at_imail.org 801.408.8111Received on Thu 05 Feb 2009 - 21:41:59 GMT

> -----Original Message-----> From: William Dunlap [mailto:wdunlap_at_tibco.com]> Sent: Thursday, February 05, 2009 2:38 PM> To: Greg Snow; marc_schwartz_at_comcast.net; ted.harding_at_manchester.ac.uk

> Cc: R-Devel

> Subject: RE: [Rd] "open-ended" plot limits?>>> > -----Original Message-----> > From: r-devel-bounces_at_r-project.org> > [mailto:r-devel-bounces_at_r-project.org] On Behalf Of Greg Snow> > Sent: Thursday, February 05, 2009 1:15 PM> > To: marc_schwartz_at_comcast.net; ted.harding_at_manchester.ac.uk> > Cc: R-Devel> > Subject: Re: [Rd] "open-ended" plot limits?> >> > I use range( 0, y ) rather than c(0, max(y)), that way if> > there are any y values less than 0, the limits still include> > them (and it is slightly shorter :-).>> To mimic what plot does by default you must ignore the NA's> and Inf's in y with something like> range(0,y[is.finite(y)])> It might be nice to have an na.rm-like argument for ignoring> the Inf's - it gets tedious to write> range(0, y1[!is.finite(y1)], y2[!is.finite(y2)], ...)> Also, when you get into really long vectors the explicit subscripting> can run you out of memory.>> Bill Dunlap> TIBCO Software Inc - Spotfire Division> wdunlap tibco.com>> >> > This also extends to cases where you may know that you will> > be adding additional data using points or lines, so you can> > do ylim=range(0, y1, y2, y3) and it will give enough room to> > add the other y variables in latter.> >> > Hope this helps,> >> > --> > Gregory (Greg) L. Snow Ph.D.> > Statistical Data Center> > Intermountain Healthcare> > greg.snow_at_imail.org> > 801.408.8111> >> >> > > -----Original Message-----> > > From: r-devel-bounces_at_r-project.org [mailto:r-devel-bounces_at_r-> > > project.org] On Behalf Of Marc Schwartz> > > Sent: Thursday, February 05, 2009 1:57 PM> > > To: ted.harding_at_manchester.ac.uk> > > Cc: R-Devel> > > Subject: Re: [Rd] "open-ended" plot limits?> > >> > > on 02/05/2009 02:48 PM (Ted Harding) wrote:> > > > Hi Folks,> > > > Maybe I've missed it already being available somehow,> > > > but if the following isn't available I'd like to suggest it.> > > >> > > > If you're happy to let plot() choose its own limits,> > > > then of course plot(x,y) will do it.> > > >> > > > If you know what limits you want, then> > > > plot(x,y,xlim=c(x0,x1),ylim(y0,y1)> > > > will do it.> > > >> > > > But sometimes one would like to> > > > a) make sure that (e.g.) the y-axis has a lower limit (say) 0> > > > b) let plot() choose the upper limit.> > > >> > > > In that case, something like> > > >> > > > plot(x,y,ylim=c(0,NA))> > > >> > > > would be a natural way of specifying it. But of course that> > > > does not work.> > > >> > > > I would like to suggest that this possibility should be> available.> > > > What do people think?> > > >> > > > Best wishes,> > > > Ted.> > >> > > Ted,> > >> > > Unless I am mistaken in what you are looking for:> > >> > > plot(x, y, ylim = c(0, max(y)))> > >> > > would seem do what you want. If otherwise unspecified, plot() uses> > > range(y) to define 'ylim'.> > >> > > HTH,> > >> > > Marc Schwartz> > >> > > ______________________________________________> > > R-devel_at_r-project.org mailing list> > > https://stat.ethz.ch/mailman/listinfo/r-devel> >> > ______________________________________________> > R-devel_at_r-project.org mailing list> > https://stat.ethz.ch/mailman/listinfo/r-devel> >

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