Re: about build-in function "rtest"

From: Dennis Shea (shea AT XXXXXX)
Date: Fri Oct 15 2004 - 14:11:10 MDT

  • Next message: Dennis Shea: "Re: about build-in function "rtest""

    >http://ngwww.ucar.edu/ngdoc/ng/ref/ncl/functions/rtest.html
    >
    >function rtest (
    > r : numeric,
    > Nr : integer,
    > opt : integer
    > )
    >
    >some question about this function:
    >1. Is the significance test applied here T-test(Student's t-test)?

    yes ... very similar to Numerical Recipies.
            Use SLATEC to comute the beta function.
            
    >2. Is there a corresponding function like "test_Wrap"?

    No but if the "r" has meta data associated with it,
    u can readily do it.

    function rtest_Wrap (r:numeric, Nr:integer, opt:integer)
    begin
      result = r ; variable-o-variable transfer of
                               ; values and meta data
      result = rtest(r, Nr, opt)
      
      result@long_name = "cor. coef. sifnificance"
      if (isatt(result,"units")) then
          delete(result@units) ; no units
      end if
      
      return(result)
    end

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