[R-gui] More doodles for a GUI: dy/dx and integral buttons

[Philippe Grosjean]

Hello,

The way R graphics are constructed, most of this is either impossible, or
very difficult. May be with the grid package?

For the "graph galery", we would like to add one in SciViews-R (the one that
is actually there is just a trial that will be reworked).

Anyway, with GPL, the way to work is not to propose ideas to other, but if
you find your ideas interesting enough, it is to implement them yourself,
and to propose some piece of code to the others. I suggest you look at the
code of the demo tkdensity in the package tcltk, see:
> library(tcltk)
> demo(tkdensity)
as a first approach on how you can program some more interactivity in R
graphs.
Best,

Philippe Grosjean

> -----Original Message-----
> From: r-sig-gui-bounces at stat.math.ethz.ch 
> [mailto:r-sig-gui-bounces at stat.math.ethz.ch] On Behalf Of 
> James.Callahan at CityofOrlando.net
> Sent: Thursday, November 18, 2004 3:41 AM
> To: r-sig-gui at stat.math.ethz.ch
> Subject: [R-gui] More doodles for a GUI: dy/dx and integral buttons
> 
> More doodles for a GUI....dy/dx and integral buttons
> 
> Some GIS programs have a magnifying glass to zoom in a 
> portion of the map. 
> You click on the magnifying glass, the cursor becomes a 
> magnifying glass and you click on an area of the map with the 
> magnifying glass and that area of the map zooms in.
> 
> Suppose you have a dy/dx tool. You graph on the screen, you 
> click on the dy/dx tool, the cursor becomes a dy/dx symbol. 
> You hover over a portion of the curve and a box pops up 
> telling you the slope of the curve at that point.  You click 
> on the "elongated S" integral symbol and you find you can 
> paint an area under the curve (or equivalently you click on a 
> paint symbol to paint and then you click on the integral 
> symbol to compute the area). You then click on an equals sign 
> and a box pops up telling you in addition to the area under 
> the curve -- the name of the method used to calculate the 
> area, the formula used and the numeric value for the area 
> complete with units.
> 
> Not very useful in production, but what a teaching tool.
> 
> I am not sure I would want that, but for the moment, I would 
> hope our minds would be free enough to imagine (without being 
> too constrained by implementation) what would be useful -- 
> and not just "File->Print."
> 
> In some of the R graphics programs, you can already identify 
> points by clicking on them.
> 
> How about a "jitter" button to apply jitter to a graph?
> 
> A graph menu with a icons representing a histogram, a 
> scatterplot, or a q-q plot?
> 
> How about adding confidence intervals / bands with just a few clicks?
> 
> How do you move from isolated tricks like clicking on points 
> -- to a comprehensive GUI environment?
> 
> How would the interface facilitate exploratory data analysis?
> 
> How would the interface facilitate verifying the data was 
> read in correctly?
> 
> How would the interface facilitate organizing and retrieving data?
> 
> How do you visualize random number generation? Should we show 
> a graph that looks like a firing range with bullets being 
> shot at it, perhaps with sound effects?
> 
> Perhaps a tactile interface that would enable one to feel the 
> weight of a slice of a probability distribution, from the 
> feather-light tail of a distribution to a heavy lead weight 
> towards the center of the distribution. Perhaps one could 
> feel the "leverage" of outliers?
> 
> What would be truly useful?  What would be merely "cute?" and 
> what would get in the way?
> 
> Jim Callahan
> Management, Budget & Accounting
> City of Orlando
> (407) 246-3039 office
> (407) 234-3744 cell phone
> 	[[alternative HTML version deleted]]
> 
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