[R] How to 'stamp' a plot with meta-data?

[Frank E Harrell Jr]

Itay Furman wrote:
> Dear R users,
> 
> Sometimes, for tracking purposes, I am interested to add to a 
> plot some metadata such as
> * the date it was produced
> * filename that stores the plot
> * perhaps data sources, author, etc
> 
> Ideally, I would like to be able to do this for any kind of plot, 
> plot(), barplot(), hist(), etc.; and, to be able to produce 
> plots with or without the metadata by a simple toggle mechanism.
> 
> Something like:
> 
> # 'Clean' plot
> some.plot.func(<args>)	# plot() or barplot() or ...
> 
> # Now with metadata
> options(metadata=TRUE)	# Or some other toggle mechanism
> 
> some.plot.func(<args>)	# Same plot as above, but with wider 
> 			# bottom margins that show the 
> 			# metadata.
> 
> So far I looked in "Introduction to R" and tried to find hints 
> using help.search() without success.
> 
> Is it possilbe to do?
> Any suggestions or pointers as to how to do it are appreciated.
> Even partial solution in which the plot is set up to accomodate 
> metadata in the margins, but the data needs to be added manually 
> after plot()ting will be great.
> 
> 	Thanks in advance,
> 	Itay
> 
> --------------------------------------------------------------
> itayf at fhcrc.org		Fred Hutchinson Cancer Research Center

Take a look at the pstamp function in the Hmisc package.

-- 
Frank E Harrell Jr   Professor and Chair           School of Medicine
                      Department of Biostatistics   Vanderbilt University