I'll take a look at this - the code is supposed ot be correct, as I  
validated it against ADAPT. However there has been work going on wrt  
atom typing which affects implicit hydrogens and hydrogen additions.  
That may be the source of bugs

On Oct 1, 2007, at 11:06 AM, Robert Stones wrote:

> Hi
>
> Are you sure ChiPathDescriptor VP-4 and VP-6 are the same as VP4  
> and VP6.
>
> I calculated these for phenol and the values do not correlate with  
> other software (my colleague uses) for calculating molecular  
> descriptors.
>
> c1ccccc1O
>
> VP4             VP6
> 0.427994      0.028689
>
>
> Using CDK
> VP-4                                  VP-6
> 0.2385310363079829              0.012757759076995721
>
>
> Also with  MDEDescriptor values do not appear to correlate
>
> MDE-34 is 0.0
> MDE-44 is 11.515559
>
> But in CDK
> MDE-34 CDK value 0.0
> MDE-44 CDK value 0.0
>
>
> Rajarshi Guha wrote:
>> On Sep 28, 2007, at 7:00 AM, Robert Stones wrote:
>>> Topological DMCHI (V)
>>> V6P
>>> V4P
>>>
>>>> These are calculated by the ChiPathDescriptor class and are   
>>>> called  VP-6 and >VP-4
>>>
>>>
>>> CDK Goes from VP-8 to VP-15 but no VP-4 and VP-6
>>>
>>> Could you please add VP-4 and VP-6 Thanks
>> The docs for ChiPathDescriptor indicates that it goes from VP-0  
>> to  VP-7, so you should have V6P and V4P (denoted by VP-6 and  
>> VP-4). I'm  not sure where you got VP-8 - VP-15
>> -------------------------------------------------------------------
>> Rajarshi Guha  <[EMAIL PROTECTED]>
>> GPG Fingerprint: 0CCA 8EE2 2EEB 25E2 AB04  06F7 1BB9 E634 9B87 56EE
>> -------------------------------------------------------------------
>> All great discoveries are made by mistake.
>>     -- Young
>
>
> -- 
>
> CSL Bioinformatics Internet Pages at http://bioinformatics.csl.gov.uk
> ----------------------------------------------------------------------
> Robert Stones  MRes, BSc              Phone:  +44 (0)1904 462675
> Higher Bioinformatics Specialist        GTN:    5129 2675
> Central Science Laboratory              Fax:    +44 (0)1904 462111
> Sand Hutton                             Email:  [EMAIL PROTECTED]
> York YO41 1LZ                           Web:    http://www.csl.gov.uk
> ----------------------------------------------------------------------

-------------------------------------------------------------------
Rajarshi Guha  <[EMAIL PROTECTED]>
GPG Fingerprint: 0CCA 8EE2 2EEB 25E2 AB04  06F7 1BB9 E634 9B87 56EE
-------------------------------------------------------------------
667:
        The neighbor of the beast.



-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2005.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
Cdk-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/cdk-user

Reply via email to