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Page Title: L.4.2.1 BIOACC.SAS program statements (Cont.)
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OUTPUT OUT=Z2 R=RESID;
TITLE2 'BIOACCUMULATION DATA CONVERTED TO RANKITS';
PROC UNIVARIATE NORMAL;
VAR RESID;
TITLE3 'SHAPIRO-WILKS TEST FOR NORMALITY';
PROC MEANS DATA=A NOPRINT;
BY TRT; VAR RANKIT;
OUTPUT OUT=X MEAN=MEAN;
DATA AX;
MERGE A X; BY TRT;
ABSDEV=ABS(RANKIT-MEAN);
PROC GLM;
CLASS TRT;
MODEL ABSDEV=TRT;
TITLE3 'LEVENE''S TEST';
/* Perform LSD on rankits. */
PROC GLM DATA=A;
CLASS TRT;
MODEL RANKIT=TRT;
MEANS TRT/LSD ALPHA=.1;
TITLE3 'LSD TEST';
/* Perform t-tests for each dredged sediment-reference sediment comparison */
/* using rankits. */
PROC TTEST DATA=T1;
CLASS TRT;
VAR RANKIT;
PROC TTEST DATA=T2;
CLASS TRT;
VAR RANKIT;
PROC TTEST DATA=T3;
CLASS TRT;
VAR RANKIT;
/* Calculate power of an LSD test to detect true population differences */
/* 10, 25, 50, and 100 % above the reference mean contaminant concentration.
*/
DATA C1;
SET W1;
IF _TYPE_^='ERROR' THEN DELETE;
MSE=SS/DF;
MERGEVAR=1;
KEEP MSE DF MERGEVAR;
DATA C2;
SET Y;
IF TRT^=1 THEN DELETE;
DATA C3;
MERGE C1 C2;
TALPHA=TINV(.95,DF);
LABEL
N='NO. OF REPLICATES, N'
MEANCONC='REFERENCE MEAN CONTAMINANT CONCENTRATION'
MSE='MEAN SQUARE ERROR, MSE'
DF='DEGREES OF FREEDOM, DF'
TALPHA='T VALUE FOR (1-ALPHA=0.95,DF)';
TITLE2 'POWER OF LSD TO DETECT A TRUE POPULATION DIFFERENCE (D)';
TITLE3 'ABOVE REFERENCE MEAN CONTAMINANT CONCENTRATION';
PROC PRINT LABEL NOOBS; VAR N MEANCONC MSE DF TALPHA;
DATA C4;
L51
Appendix L Selected Resource Documents

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