[BioC] superimpose lowess on smoothScatter

[Anderson, S. Keith]

Hi Andrew,

Another option is to use the package "hexbin"
----------
library(hexbin)

## a vector of your M-values
m.ii

## a vector of your A-values
a.ii

temp.plot <- list(M=m.ii,A=a.ii)
hb <- plotMAhex(temp.plot,newpage=TRUE,main="Main Title Goes
Here",legend=0)
hexVP.abline(hb$plot.vp, h=0, col="black")
hexMA.loess(hb,span=.75)

# if a Median Line is desired
hexVP.abline(hb$plot.vp,v=median(means.log2), col="blue")
---------

Have a great day,

S. Keith Anderson, M.S.
Statistician/Assistant Supervisor
Cancer Center Statistics
Division of Biomedical Statistics and Informatics
Phone: 507-266-9059
Fax: 507-266-2477
E-mail: anderson.s at mayo.edu
_______________________________
Mayo Clinic
200 First Street S.W. 
Rochester, MN 55905
www.mayoclinic.org

-----Original Message-----
From: bioconductor-bounces at stat.math.ethz.ch
[mailto:bioconductor-bounces at stat.math.ethz.ch] On Behalf Of Andrew
Einhorn
Sent: Monday, August 30, 2010 10:03 AM
To: bioconductor at stat.math.ethz.ch
Subject: [BioC] superimpose lowess on smoothScatter

I am trying to create an MvA plot using smoothScatter that has a lowess
curve fit superimposed.  I can't seem to find documentation on
smoothScatter
that will allow this.  Currently I have:

smoothScatter(x,y, main = "My MvA Plot")


Can a lowess curve fit be added as an argument to smoothScatter? If not,
is
there a way to add it externally to the smoothScatter function?

	[[alternative HTML version deleted]]

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