Lund's Test for Outlier Analysis

Occasional Contributor
Posts: 6

Lund's Test for Outlier Analysis

Dear all

Can you help me to make Lund Test for Outlier Analysis in Ratios to be used in bioequivalence studies, var AUC & Cmax

For Example:

 Obs Subject Ratio for AUCT Ratio for AUC00 Ratio for Cmax Lund Prescott Outlier 1 1 1.40988 1.31543 0.91176 2.73085 3.27961 No 2 2 0.95385 0.94783 0.96886 1.00064 3.27961 No

Best Regards

Ahmed

Occasional Contributor
Posts: 6

Re: Lund's Test for Outlier Analysis

Dear all

Can you help me to make Lund Test for Outlier Analysis in Ratios to be used in bioequivalence studies, var AUC & Cmax

For Example:

 Obs Subject Ratio for AUCT Ratio for AUC00 Ratio for Cmax Lund Prescott Outlier 1 1 1.40988 1.31543 0.91176 2.73085 3.27961 No 2 2 0.95385 0.94783 0.96886 1.00064 3.27961 No

Best Regards

Ahmed

SAS Super FREQ
Posts: 4,240

Re: Lund's Test for Outlier Analysis

Try posting this to the Community for SAS Statistical Procedures

I am not familiar with Lund's Test. Can you post a reference?  I found this discussion

Many years ago james Handsfield at the CDC developed a SAS macro for detecting outliers. If you want to see what he did, his paper is at http://www2.sas.com/proceedings/sugi23/Posters/p197.pdf

Occasional Contributor
Posts: 6

Re: Lund's Test for Outlier Analysis

Thank you Rick

Occasional Contributor
Posts: 6

Re: Lund's Test for Outlier Analysis

I found this code:

Proc glm outstat=Lund;

class Subject Treat Seq Period;

MODEL Log_AUCT Log_AUCinf Log_Cmax=seq subject(seq) Treat period;

lsmeans Treat/stderr; Estimate 'test-ref' Treat -1 1;

Output out=Lund P=PRED R=RESID stdr=eresid STUDENT=STDRESID;

run;

Best Regards

Ahmed

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