Bioequivalence and Bioavailability Forum

Cook’s distance [Outliers]

posted by Helmut  – Vienna, Austria, 2013-02-21 18:44 (4080 d 17:22 ago) – Posting: # 10095
Views: 5,191

Hi Karthik,

❝ by using the prog reg and gplot (subject vs dffits) I plot the graph for cook distance method, whether its correct.

I don’t know this software. Looks like you have included both treatment periods from a 2×2×2 cross over study. Residuals from both periods should have the same values and differ in their signs. Rerun the analysis with one period only. Here is an example obtained with R, package bear:

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Dif-tor heh smusma 🖖🏼 Довге життя Україна! 
Helmut Schütz


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Complete thread:

• Cook distance K2K 2013-02-20 08:10 
  • Cook’s distance Helmut 2013-02-20 14:49
    • Cook’s distance K2K 2013-02-21 06:40
      • Cook’s distanceHelmut 2013-02-21 17:44
        • Cook’s distance K2K 2013-02-22 12:22