[PD] Set Operations

[Mike McGonagle]

Thanks a lot, Frank. I am going to look at this stuff tonight.


Mike


On 12/28/06, Frank Barknecht <fbar at footils.org> wrote:
> Hallo,
> Alexandre Quessy hat gesagt: // Alexandre Quessy wrote:
>
> > Very interesting.
> > You can look in the list-abs library. I don't know if there is a
> > list-roll_left abstraction though.
>
> There is [list-rot], which is similar to [Lror] but rotates the other
> direction, so you should use [* -1] to make it compatible with Peter's
> tutorial.
>
> Yesterday I made a "toset" implementation, which needs some
> cleaning up but it's rather easy to do. I'm just not sure if it should
> be part of [list]-abs as it's rather special and "set" is an ambigous
> name, which I would like to avoid in a general purpose library as
> [list]-abs (or rather, I wouldn't want "set" to mean in [list]-abs
> what Peter Elsea describes in "Fuzzy Logic").
>
> [Ltop] is a bit more tricky to clone - Question: How to find the x
> largest values in a [table]? -, but I also have a basically working
> version. I attached my scratch-patch, in case you're interested,
> including a lot of bugs, so not for the faint of heart.
>
> Ciao
> --
>  Frank Barknecht                 _ ______footils.org_ __goto10.org__
>
>
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