R help - Aug 2007 - vertically oriented color key in heatmaps

Hi, I have some data which I was plotting using image(). I wanted to  
add a vertical color key to the plot and I found that heatmap.2 in  
gplots does let me add a color key. However, I was thinking of a  
vertical bar with the color range rather than  the style that gplots  
provides.

Is there any package (or code snippet) that would let me add a  
vertical color key to an image() or heatmap plot?

Thanks,

-------------------------------------------------------------------
Rajarshi Guha  <rguha at indiana.edu>
GPG Fingerprint: 0CCA 8EE2 2EEB 25E2 AB04  06F7 1BB9 E634 9B87 56EE
-------------------------------------------------------------------
Q:  What do you get when you put a spinning flywheel in a casket and
     turn a corner?
A:  A funeral precession.

colorbar() from the package matlab.


nightly.py wrote:
> 
> Hi, I have some data which I was plotting using image(). I wanted to  
> add a vertical color key to the plot and I found that heatmap.2 in  
> gplots does let me add a color key. However, I was thinking of a  
> vertical bar with the color range rather than  the style that gplots  
> provides.
> 
> Is there any package (or code snippet) that would let me add a  
> vertical color key to an image() or heatmap plot?
> 
-- 
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Rajarshi Guha wrote:
> Hi, I have some data which I was plotting using image(). I wanted to  
> add a vertical color key to the plot and I found that heatmap.2 in  
> gplots does let me add a color key. However, I was thinking of a  
> vertical bar with the color range rather than  the style that gplots  
> provides.
> 
> Is there any package (or code snippet) that would let me add a  
> vertical color key to an image() or heatmap plot?
> 
Hi Rajarshi,
Have a look at color.legend in the plotrix package.

Jim

On Aug 14, 2007, at 5:11 AM, Jim Lemon wrote:
> Rajarshi Guha wrote:
>> Hi, I have some data which I was plotting using image(). I wanted  
>> to  add a vertical color key to the plot and I found that heatmap. 
>> 2 in  gplots does let me add a color key. However, I was thinking  
>> of a  vertical bar with the color range rather than  the style  
>> that gplots  provides.
>> Is there any package (or code snippet) that would let me add a   
>> vertical color key to an image() or heatmap plot?
> Hi Rajarshi,
> Have a look at color.legend in the plotrix package.
Thanks!

-------------------------------------------------------------------
Rajarshi Guha  <rguha at indiana.edu>
GPG Fingerprint: 0CCA 8EE2 2EEB 25E2 AB04  06F7 1BB9 E634 9B87 56EE
-------------------------------------------------------------------
Artificial intelligence has the same relation to intelligence as
artificial flowers have to flowers.
	-- David Parnas

Rajarshi Guha <rguha at indiana.edu> writes:
> Hi, I have some data which I was plotting using image(). I wanted to
> add a vertical color key to the plot and I found that heatmap.2 in
> gplots does let me add a color key. However, I was thinking of a
> vertical bar with the color range rather than  the style that gplots
> provides.
In package 'spatstat' this is the default behaviour for plotting a pixel
image (object of class "im").
If M is your matrix of data

         library(spatstat)
         Z <- as.im(t(M))
         plot(Z)
         plot(Z, col=topo.colors(128))