[R] plotting a grid with grid() ?

[John Kane]

ARGGH! I knew I was missing something simple!! It was just too obvious.  

Many thanks.

--- On Mon, 8/24/09, David Winsemius <dwinsemius at comcast.net> wrote:

> From: David Winsemius <dwinsemius at comcast.net>
> Subject: Re: [R] plotting a grid with grid() ?
> To: "John Kane" <jrkrideau at yahoo.ca>
> Cc: "R R-help" <r-help at stat.math.ethz.ch>
> Received: Monday, August 24, 2009, 5:14 PM
> 
> On Aug 24, 2009, at 4:10 PM, John Kane wrote:
> 
> > I am trying to come up with a way of shading-in a grid
> for a simple pattern
> > 
> > So far I can draw a square where I want but I cannot
> seem to draw a complete grid. I am just drawing them along
> the diagonal!!
> > 
> > Clearly I am missing something simple but what?
> > 
> > Any suggestions gratefully accepted.
> > 
> > Example
> >
> #====================================================================
> > op <-  par(xaxs="i", yaxs="i")
> > plot(c(1, 11), c(1,11), type ="n", xlab="", ylab="")
> 
> # and of course you suggested using grid() so ...
> 
> grid(10,10, col="blue")
> 
> > par <- op
> > 
> >
> #=====================================================================
> 
> David Winsemius, MD
> Heritage Laboratories
> West Hartford, CT
> 
> 


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