[RkWard-devel] Grid, Stepfun and final (nearly) form of the clt plugin.

[Prasenjit Kapat]

Hi,

Last night I had committed a few things:

1. plot_stepfun_options: This plugin provides the the graphical options to 
plot.stepfun(). As such this is to be used an embeded plugin. We can write a 
new plugin, plot_stepfun (under plots?), with a varslot element and embeding 
plot_stepfun_options. This will complete the plot.stepfun() function.

2. A grid plugin under (X11device) View > Draw grid. A small one but covers 
all the arguments to grid(). The drawback (when compared to the grid on/off 
option of matlab) is that, once the grid is drawn it cannot be erased (off?). 
But thats the nature of the R function grid(). One solution is to include 
this in the plot_options plugin with a checkbox to enable/disable the grid. 
Based on how "preview" works, as soon as this (grid) checkbox is toggled, the 
whole graphics will be redrawn again, therby giving a "feel" of grid on/off. 
Why is it a "feel"? Because for simulated data plots (like distribution/clt 
plugins) every time the graphics is redrawn, it is for a whole new set of 
random numbers. But again, this is the situation with any GUI element not 
just the grid checkbox (if added).

3. The binomial CLT: Apart from the "rug" options, I think the plugin is ready 
to go. I am not planing to add QQplot, it is becoming an overkill for a 
simple visualisaton. 

4. As Thomas was saying, rug() is a generic plot feature, which can be treated 
in a fashion similar to grid(). So, if everyone feel the same way, I will 
remove "Rug options" from clt and add a new embedable plugin which can be 
used anywhere (may be plot_options or may be (x11device) VIew > Add Rug or 
somewhere once we reach a working solution for par() options).

Once the rug issue for CLT is settled, I am planning to roll out the clt 
plugin for all the distributions, and then be done with CLT. Now, that means 
a lot of new files (19*3) under distributions dir. Is that fine, or should we 
create a new dir (may be sub-dir under distribution)?

Lastly, the "addRugtoplot" checkbox on binomial_clt.xml is behaving funny. I 
have connected all the rug related options to be enabled based on 
addRugtoplot.state. But it does not work the first time the plugin is started 
(when the rug checkbox is not checked but still all the options is enabled). 
I will look into it again, today.

Regards
PK