On 6/21/10 6:32 PM, Tim Vandermeersch wrote:
> On Tue, Jun 22, 2010 at 3:17 AM, Geoffrey Hutchison
> <ge...@geoffhutchison.net>  wrote:
>>> The changes are in svn trunk. The current test set (aromatics.smi,
>>> attype.00.smi&  nci.smi) is not good though.
>>
>> By that, I assume you mean that the current test set is not sufficient for 
>> SSSR vs. LSSR? I can probably generate a *MUCH* larger test set if that's 
>> what you need.
>
> There are not enough cases where the SSSR is not canonical. I already
> added some (tetrahedron, cube, octahedron, fullerene 20&  60). While
> the SSSR doesn't fail the canonical test for bridged rings, having 3
> rings in the LSSR (2 in SSSR) gives more intuitive results for
> substructure search.

An interesting way to test various things is with the SMILES "anti-canonical" 
option, -xC.  It's amazing how many algorithms can have hidden atom-order 
dependencies.  Unfortunately, it's hard to make test cases using -xC directly 
because the results are deliberately quasi-random.

Craig


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