R help - Feb 2003 - Forcing plots to "adjust-to-data"

Hello.  In messing around with some of the graphical parameters using the 
par() function (setting margins for example), I've noticed that the plot 
doesn't always immediately respond to changes...for example when lines are 
added, if they are out of the range you need to physically find out what 
the new max range has to be.  Is there a companion function in R to the 
xlispstat function :adjust-to-data which dynamically forces the plot to do 
just that?  Thanks much again,

   Jason

>-----Original Message-----
>From: r-help-admin at stat.math.ethz.ch 
>[mailto:r-help-admin at stat.math.ethz.ch] On Behalf Of Jason Bond
>Sent: Monday, February 24, 2003 5:12 PM
>To: R-help at stat.math.ethz.ch
>Subject: [R] Forcing plots to "adjust-to-data"
>
>
>Hello.  In messing around with some of the graphical 
>parameters using the 
>par() function (setting margins for example), I've noticed 
>that the plot 
>doesn't always immediately respond to changes...for example 
>when lines are 
>added, if they are out of the range you need to physically 
>find out what 
>the new max range has to be.  Is there a companion function in 
>R to the 
>xlispstat function :adjust-to-data which dynamically forces 
>the plot to do 
>just that?  Thanks much again,
>
>   Jason
In general, once you actually plot the graphic in a device window, you
would need to re-plot the graphic if you need to alter the dimensional
attributes of the plot.  You can add new objects to an existing plot
quite easily, but within the pre-existing coordinate system or margin
areas. 

Thus, if you need to adjust the x or y axis ranges for example, you
would need to re-draw the graphic.

HTH,

Marc Schwartz