I replied to your stack overflow question, but here's my solution in
JavaScript. Maybe it could be useful to you and others if port it over to R.

https://github.com/rayvoelker/js-loc-callnumbers/blob/master/locCallClass.js

I'm happy to answer any questions about it, but I found that the method I
used was pretty effective to sort all the call numbers I could throw at it!

--Ray

On Fri, Jul 21, 2017 at 11:56 AM, Cooper, Krystal <[log in to unmask]>
wrote:

> Hi Bill,
>
> Elizabeth Wickes from the uiuc iSchool suggested this.
>
> https://github.com/libraryhackers/library-callnumber-lc/tree/master/python
>
> Sent from my iPhone
>
> On Jul 21, 2017, at 9:43 AM, William Denton <[log in to unmask]<mailto:wtd@
> POBOX.COM>> wrote:
>
> Sorting by LCC numbers has been solved in most popular languages, but I
> couldn't find any example of how to do it in R, nor could I figure it out,
> so in case anyone is interested or can help, here's where I asked about it
> on Stack Overflow:
>
> How to sort by Library of Congress Classification (LCC) number in R
> https://stackoverflow.com/q/45240337/854346
>
> Bill
> --
> William Denton :: Toronto, Canada   ---   Listening to Art:
> https://listeningtoart.org/
> https://www.miskatonic.org/         ---   GHG.EARTH: http://ghg.earth/
> Caveat lector.                      ---   STAPLR: http://staplr.org/
>



-- 
Ray Voelker
(937) 620-1830