Answers to these and many other good questions about  
can be found here:

In particular you might be most looking for this question:

But, indeed, based on that manually built mass of data, yes, all of  
the derivative reports and charts are generated by software I wrote.

On Jan 20, 2010, at 9:57 AM, R.D. Latimer wrote:

> Thanks for this data,
>  How did you do it, collect the data?  I teach computer science in  
> a high
> school for science and tech, this sounds like a computer program  
> could look
> through abc files and determine the structure of each reel?  Also,  
> was a
> program used to collect the data on the "Top 10" lists.
> Great job, thanks,
> Randy Latimer
> On Tue, Jan 19, 2010 at 1:27 AM, Alan Ng <[log in to unmask]>  
> wrote:
>> I've just published an interesting new chart about the variety of  
>> lengths
>> of Irish reels:
>> This question has come up on IRTRAD-L a few times over the years,  
>> so I hope
>> it is entertaining to some of you.
>> --
>> ____________________________________________________________
>> Alan Ng, PhD  .  Madison, Wisconsin, USA
>> [log in to unmask] .