alpha = betai ( 0.5*df, 0.5, df/(df+tval**2) )
>Thanks for your advice. I want to show that a time series
>of annual temperature data has significant warming.
>I don't believe that I can use regline or regcoef to
>test this, since it's one time series.
Yes you can. :-)
The null hypothesis is that the regression coef is zero..
You can use NCL's incomplete beta function, to calculate
see example 2 [Remember the N returned by the regline/coef func
yields N-2 degrees of freedom]
statistical theory and methodology
j wiley 1965 pgs: 334-346.
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