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Datamonkey Server >> Datamonkey feedback >> Interpretation of episodic diversifying selection (BSR) results
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Message started by Men on Sep 20th, 2013 at 8:19am

Title: Interpretation of episodic diversifying selection (BSR) results
Post by Men on Sep 20th, 2013 at 8:19am
Hello,

I did a branch site REL analysis from datamonkey and had the following results:
Found 1 branches under episodic diversifying selection at p<0.05
Branch A (A is the name of one of my species)
Corrected p-value 0.002
w+ 10,000.00
Pr[w=w+] 0.00, Pr the proportion of sites inferred to be evolving at w+ along this branch.
I need help in understanding while Pr is zero when there is evidence of episodic diversifying selection on the branch.  I expected Pr>0 since there are sites under positive selection according to the results.

Title: Re: Interpretation of episodic diversifying selection (BSR) results
Post by Sergei on Sep 25th, 2013 at 11:04am
Hi there,

Pr[w=w+] = 0.00 up to two digits of precision (i.e. it is not exactly zero). If you look at the CSV results file from the analysis, you will have access to more decimal places.

Sergeo

Title: Re: Interpretation of episodic diversifying selection (BSR) results
Post by Men on Sep 26th, 2013 at 9:24am
Hello Sergei,

Thanks for the clarification.

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