[ncl-talk] Setting degree of freedom in rtest function

[Hyun Marcia]

> Hi, (i'm not good at Eng. sorry ... )
>
>


> I have a qustion of correlation significant test(function:rtest).
>
>


> I want to change the degree of freedom(df) which is already setted.
>
>
>  I kowt that [rtest] funtion uses the t-value and df
>
>   tval   = r/*sqrt*
> <https://www.ncl.ucar.edu/Document/Functions/Built-in/sqrt.shtml>
> ((1.0-r^2)/(n-2))
>
>   df = n-2
>


>
> but, I want to change [df = n-2] into [my own degree of freedom.]
>
>



> Is there any method to solve this problem?
>
>
> Thanks.
>
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