Re: About using betainc function

From: Dennis Shea <shea_at_nyahnyahspammersnyahnyah>
Date: Tue Feb 22 2011 - 15:17:12 MST

You do not put the significance level directly
into the incomplete beta func

First you calculate the t-statistic

  t = r*sqrt((Nr-2)/(1-r^2))

See for example the Description section of:

NCL follows the same approach outlined in "Numerical Recipies"
in the "Statistical Description of Data" [Linear Correlation]

On 02/22/2011 03:03 PM, eddycarl wrote:
> Hi there,
> I tried to use the betainc function in NCL to determine the significance
> level of a linear regression analysis. My question is that: what the
> inputs a (the first beta distribution parameter) and b (the second beta
> distribution parameter) mean? And, how do they affect the significance
> level? More specifically, in the example 2 of
>, where
> the significance level is 5%, b is set as 0.5. If I want 1% significance
> level, do I need to change parameter b?
> Thanks!
> -Eddy

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Received on Tue Feb 22 15:17:17 2011

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