[R] carpet plots

[John Kane]

Anything here that might help
http://learnr.wordpress.com/2010/01/26/ggplot2-quick-heatmap-plotting/

John Kane
Kingston ON Canada


> -----Original Message-----
> From: joeclark77 at hotmail.com
> Sent: Mon, 2 Jul 2012 13:21:25 -0700
> To: mueller.eisborn at googlemail.com, r-help at r-project.org
> Subject: Re: [R] carpet plots
> 
> 
> These "carpet plots" are also called "heat maps" and there's a current
> thread with the subject line "Heat Maps" in which I've given a couple of
> examples of code for them.  The R function image() is very easy to use:
> 
> 
> 
> image( x=(x values), y=(y values), z=(matrix of z values with x rows and
> y columns), col=(vector of colors), breaks=(vector of break points, one
> more than colors) )
> 
> 
> 
> What I'd like to know is: does anyone know how to easily create a
> legend/key to the color gradients, like the one in the right margin of
> Mueller's first example:
> (http://www.johannes-hopf.de/wordpress/wp-content/uploads/2009/12/Zufall-300x225.png)?
> 
> 
> // joseph w. clark , phd candidate
> \\ usc marshall school of business
> 
> 
> ----------------------------------------
>> Date: Mon, 2 Jul 2012 20:05:12 +0200
>> From: mueller.eisborn at googlemail.com
>> To: r-help at r-project.org
>> Subject: [R] carpet plots
>> 
>> Hi all,
>> I wonder why there is so little software for carpet plots (german:
>> Rasterdiagramm) (Three dimensional plot (x, y, z), the 3rd dimension
>> (z) symbolized by colourgradients). Besides from one or the other non
>> free software I only found an OpenOffice macro, a combination of
>> Gnuplot and Excel (an Excel macro calling gnuplot)
>> (http://www.johannes-hopf.de/2009/12/carpet-plot-version-1-3/9 and
>> Quikgrid (http://www.galiander.ca/quikgrid/) which I use for
>> bathymetric maps.
>> 
>> Though I use one or two R scripts I have no deeper knowledge. Because
>> I think "That's a thing R can do!", I suppose, there are scripts for
>> this purpose. Perhaps one of you knows such a script. I would be very
>> grateful if you could point me to some information on this subject.
>> 
>> Richard
>> 
>> --
>> Richard Müller . Am Spring 9 . D-58802 Balve
>> www.oeko-sorpe.de
>> 
>> ______________________________________________
>> R-help at 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.
> ______________________________________________
> R-help at 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.

____________________________________________________________
FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks & orcas on your desktop!