[R] Two overlaid density plots - Does order matter?

2008-09-25 Thread Stephen Collins
In the following code, the only difference between the two plots is the 
order the variables are plotted.  In this case, the plot of cdata.den in 
plot #1 is different from its plot in #2. Specifically, cdata.den spans 
the x-axis from -5 to 30 in plot #1 and from 0 to 20 in plot #2. Does 
anyone understand why these two plots do not yield the same result? 

#Make density objects
pre.den- density(
preclaims[preclaims[,7]cc1  preclaims[,7]cc2,7],
from = cc1,
to = cc2)
cdata.den-density(cdata,from=cc1,to=cc2)

#Plot No. 1
x11()
plot(cdata.den,col=1)
lines(pre.den,col=2)

#Plot No. 2
plot(pre.den,col=2)
lines(cdata.den,col = 1)

 Regards,
 
Stephen Collins, MPP | Analyst
Health  Benefits | Aon Consulting
200 East Randolph, Suite 900, Chicago, IL
Tel: 312-381-2578 | Fax: 312-381-0136
Email: [EMAIL PROTECTED]
 

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Re: [R] Two overlaid density plots - Does order matter?

2008-09-25 Thread stephen sefick
this is not reproducible, but this may be the answer--  R graphic
devices are like a pen and paper when you plot something it is there
on the piece of paper then when you plot something else on top of that
then if there are any points that intersect with the first plot then
they will be plotted on top of the points from the old graph

plot(1,1)
plot(1,1, col=blue)

On Thu, Sep 25, 2008 at 11:54 AM, Stephen Collins
[EMAIL PROTECTED] wrote:
 In the following code, the only difference between the two plots is the
 order the variables are plotted.  In this case, the plot of cdata.den in
 plot #1 is different from its plot in #2. Specifically, cdata.den spans
 the x-axis from -5 to 30 in plot #1 and from 0 to 20 in plot #2. Does
 anyone understand why these two plots do not yield the same result?

 #Make density objects
 pre.den- density(
preclaims[preclaims[,7]cc1  preclaims[,7]cc2,7],
from = cc1,
to = cc2)
 cdata.den-density(cdata,from=cc1,to=cc2)

 #Plot No. 1
 x11()
 plot(cdata.den,col=1)
 lines(pre.den,col=2)

 #Plot No. 2
 plot(pre.den,col=2)
 lines(cdata.den,col = 1)

  Regards,

 Stephen Collins, MPP | Analyst
 Health  Benefits | Aon Consulting
 200 East Randolph, Suite 900, Chicago, IL
 Tel: 312-381-2578 | Fax: 312-381-0136
 Email: [EMAIL PROTECTED]


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 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.




-- 
Stephen Sefick
Research Scientist
Southeastern Natural Sciences Academy

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

-K. Mullis

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