[ncl-talk] coherence

[Xi Chang]

Hi Dennis and NCL,

In this case, I compute the coherence from the "ezfftf" function for two
variables X and Y.

how does the dof is computet in specxy_anal? can I use directly the dof
produced from the "specxy_anal" function for my case?

Thanks

On Thu, Oct 2, 2014 at 3:49 PM, Dennis Shea <shea at ucar.edu> wrote:

> The dof is returned to you
>
> dof = *specxy_anal* (x,y,iopt,jave,pct)
>
> ^^^
>
> On Tue, Sep 30, 2014 at 1:37 PM, Xi Chang <xi.chang01 at gmail.com> wrote:
>
>> Dear Dennis and NCL
>>
>> thank you for the example. However i cant fint a way how to determine the
>> degree of freedom (df) in this formulation. I just read the paper and did
>> not find any info. How if my series is strongly auttocorrelated?
>> thank you for any hint.
>>
>> Chang
>>
>>
>>
>>
>> On Tuesday, September 30, 2014, Dennis Shea <shea at ucar.edu> wrote:
>>
>>> Please read
>>>
>>> http://www.ncl.ucar.edu/Document/Functions/Built-in/specxy_anal.shtml
>>>
>>> there is a whole section on it .... including references.
>>>
>>> On Tue, Sep 30, 2014 at 1:12 PM, Xi Chang <xi.chang01 at gmail.com> wrote:
>>>
>>>> Hi everyone,
>>>> would you please suggest me how to determine significance from the
>>>> coherence resulting from two variables? just cant find any example how to
>>>> do that.
>>>>
>>>> Really appreciate for any hints.
>>>> thank you
>>>>
>>>> Chang
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>>>
>
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