On Tue, Jun 22, 2010 at 4:31 AM, Craig A. James <cja...@emolecules.com> wrote:
> 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.

I'm currently using OBMol::RenumberAtoms to do this (in
test/lssrtest.cpp). The result is the same, test the resulting ring
set with random atom order.

> Craig
>
>
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