Clustering technique

[Taliesin Nuin]

Luca wrote:
> Dear all, excuse me if i post a simple question.. I am trying to find
> a software/algorythm that can "cluster" simple data on an excel sheet
> 
> Example:
>                 Variable a   Variable b   Variable c
> Case 1        1                   0              0
> Case 2        0                   1              1
> Case 3        1                   0              0
> Case 4        1                   1              0
> Case 5        0                   1              1
> 
> 
> The systems recognizes that there are 3 possible clusters:
> 
> the first with cases that has Variable a as true,
> the second has Variables b and c
> the third is "all the rest"
> 
>         Variabile a    Variabile b   Variabile c
> 
> Case 1     1               0            0
> Case 3     1               0            0
> 
> Case 2     0               1            1
> Case 5     0               1            1
> 
> Case 4     1               1            0
> 
> 
> Thank you in advance

Luca,

How many news groups and lists have you posted this on? I just answered 
this question on the PHP mailing list. If I'd seen your post here I 
would have written you a different, Pythonic answer (or left it to the 
other poster who has already given an answer). I appreciate that you 
want a reply, but it is *not good* to cross-post all over the place and 
waste a lot of people's time. Somebody takes the time and effort here to 
answer your questions whilst at the same time others are duplicating the 
effort elsewhere.

If you need a solution specific to a certain language, then ask on that 
news group. If you're interested in a general answer then ask on a more 
general news group such as comp.programming or comp.theory.

Taliesin Nuin.