[ncl-talk] How can i get the effective number of degree of freedom during the correlation signficant test?

[Dennis Shea]

[1]
siglvl = 0.05
neqv   = equiv_sample_size (y(lat|:,lon|:,time|:), siglvl,0)   ; (nlat,mlon)

The 'neqv' will depend on the autocorrelation.

=====
 [2]
Can i apply equiv_sample_size  when i use rtest function?

Yes

On Thu, Jan 14, 2016 at 1:58 AM, Hyun Marcia <hyun998877 at gmail.com> wrote:
> Hello,
>
> I want to get a effective number of degree of freedom during the
> correlation.
>
> When i use two data like this
>
> X (time)  Y(time lat lon)
>
> I'm trying to calculate a (95%) confidence level on a correlation/regression
> map  of X & Y
>
> But i cant understand how to use this function in significant of correlation
> coeff.
> http://www.ncl.ucar.edu/Document/Functions/Built-in/equiv_sample_size.shtml
>
> Can i apply equiv_sample_size  when i use rtest function?
>
> Is there anyone who help this problem?
>
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