[R] Permutations

[Ingmar Visser]

On 7/14/04 7:42 PM, "Jordi Altirriba Gutiérrez" <altirriba at hotmail.com>
wrote:

> 4 5 6 | 2 1 3 | 7 8 9 | 10 11 12   NO ----because it's an "intra-block"
> permutation of permutation 3
>          -  -
> 10 1 7 | 4 8 7 | 5 6 12 | 3 2 9    YES---Xth permutation
> 
> 1 10 7 | 4 8 7 | 5 6 12 | 3 2 9    NO ----because it's an
> "intra-block"permutation of permutation X
> -   -
> 
> So, what is a "not correct" permutation is an "intra-block" permutation of a
> permutation created before.
> 
> Again, thanks for your time and suggestions,

Hi Jordi, 

If it is allowed to combine permutations then allowing inter block
permutations will generate all possible permutations:

eg
1 2 3 | 4 5 6 
1 4 3 | 2 5 6
2 4 3 | 1 5 6
2 1 3 | 4 5 6

According to your inter- and intra-block permissions, this sequence is
allowed but the result is not ...

best, ingmar