[R-SIG-Finance] displaying a traditional stock chart

[Armstrong, Whit]

Thanks, Dirk.

I was thinking of an R integrated chart.

I've done the whole R->C->Java route before with Rexcepoi, and it's
quite a pain.

I would love to do simple things like select time ranges (x axis ranges)
w/ the mouse on the chart that you and John Bollinger built together.

My previous employer had an internal scripting language that had
interactive graphs.  It's tough to give it up once you get used to
having it.

I assume that that kind of behaviour would require some major changes to
R internals.  Once nice implementation that I've seen which also
preserves the look and feel of R charts is the Rgl package.

http://rgl.neoscientists.org/gallery.shtml

Thx,
Whit


> -----Original Message-----
> From: Dirk Eddelbuettel [mailto:edd at debian.org] 
> Sent: Friday, February 09, 2007 8:24 PM
> To: Armstrong, Whit
> Cc: R-sig-finance
> Subject: Re: [R-SIG-Finance] displaying a traditional stock chart
> 
> 
> On 9 February 2007 at 16:51, Armstrong, Whit wrote:
> | looks like a nice chart, but one of the key features 
> missing from R is 
> | interactive charts.
> | 
> | simple things like mouse tracking, zoom, line annotations, etc.
> 
> Try the various Java devices at www.rosuda.org, or now 
> rforge.net. A lot of that was already in the latest Quantian, 
> and it has also gotten easier on Debian / Ubuntu thanks to 
> the packages Sun Java and R's new R CMD reconfjava. 
> 
> Just to see how painful it would be to do, I also added mouse 
> tracking to something with R's tcltk a few years ago. But I'm 
> no gui hacker so...
> 
> | This would be huge to have in R.
> | 
> | Anyone have an idea how hard this would be?
> 
> Somewhat, as we know, as the base R graphics are static. But 
> with Java you can do some tricks. I also hope that svg device 
> will help for zooming etc.
> 
> Dirk
> 
> --
> Hell, there are no rules here - we're trying to accomplish something. 
>                                                   -- Thomas A. Edison
> 




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