[Jscheme-user] elf/sort.scm

[Ken A. <kan...@bb...>]

elf/sort.scm is a group of procedures i've been using that let you analyze Scheme data in a relatively relational way, so its easy to combine expressions to get the query you want.

So for example 

(map* (project (unique x) (count y))
      (group-by (project x y) data)

is the same as the SQL query :
select unique(x), count(y) from data group by x, y

Rusty wanted me to add the histogram code we've been using also, which is a great way to summarize aspects of your data.

We've been successfully analyzing  60,000+ element datasets with JScheme.