[gmx-users] Correlation-Covariance

[Ran Friedman]

I'll submit it when the site is available. If anyone needs it urgently,
send me a message off the list.

Ran.

Tsjerk Wassenaar wrote:
> Hi,
>
> Otherwise, divide every element ij by sqrt(ii)*sqrt(jj).
>
> Cheers,
>
> Tsjerk
>
> On Wed, Jul 30, 2008 at 4:44 PM, Ran Friedman <r.friedman at bioc.uzh.ch> wrote:
>   
>> I made a modified version of g_covar that has this capability. I'll put it
>> in the user contributions later today.
>>
>> Ran.
>>
>> Dhananjay wrote:
>>
>> Hello all,
>>
>> I have done MD simulation of protein and using trajectories I did covariance
>> analysis. Using program g_covar with -ascii option a row covariance matrix
>> have been generated.
>>
>> However, I an interested in Correlation matrix instead of Covariance.
>>
>> Can any one tell me how to convert the covariance matrix into correlation
>> matrix or what is the relation between covariance and correlation matrix.
>>
>> I am not good in programming or mathematics, but if anyone could help me and
>> give me some direction, I will be happy to write own program/script.
>>
>>
>> Thanking you in advance,
>>
>>
>> -- Dhananjay
>>
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>> --
>> ------------------------------------------------------
>> Ran Friedman
>> Postdoctoral Fellow
>> Computational Structural Biology Group (A. Caflisch)
>> Department of Biochemistry
>> University of Zurich
>> Winterthurerstrasse 190
>> CH-8057 Zurich, Switzerland
>> Tel. +41-44-6355593
>> Email: r.friedman at bioc.unizh.ch
>> Skype: ran.friedman
>> ------------------------------------------------------
>>
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>>     
>
>
>
>   

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