16e-Anova-PostANOVA

16e-Anova-PostANOVA - EXST7015 : Statistical Techniques II...

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Unformatted text preview: EXST7015 : Statistical Techniques II Geaghan ANOVA Treatment Arrangements Post-hoc test examples Page 1 16e-Anova-PostANOVA 2 *****************************************************************; 3 *** Example of unbalanced CRD with experimental error ***; 4 *** From Snedecor & Cochran, 1967 (pg 278) ***; 5 *****************************************************************; 6 OPTIONS PS=256 LS=132 NOCENTER NODATE PAGENO=1 NONUMBER; 7 dm 'log;clear;output;clear'; 8 DATA MICE onebyone; INFILE CARDS MISSOVER; 9 INPUT STRAIN $ 1-4 DAYS NUMBER; 10 TITLE1 'EXST7015: DAYS TO DEATH FOR MICE INOCULATED WITH 3 TYPHOID STRAINS'; 11 TITLE2 'UNEQUAL NUMBER OF MICE IN EACH TREATMENT'; 12 do i = 1 to number by 1; output onebyone; end; 13 output mice; 14 CARDS; NOTE: The data set WORK.MICE has 31 observations and 4 variables. NOTE: The data set WORK.ONEBYONE has 224 observations and 4 variables. NOTE: DATA statement used: real time 0.08 seconds cpu time 0.08 seconds 14 ! RUN; 46 ; 47 PROC MIXED DATA=OnebyOne cl covtest; CLASSES STRAIN; 48 TITLE3 'ANALYSIS OF VARIANCE with PROC MIXED'; 49 MODEL DAYS = STRAIN / htype=3 DDFM=Satterthwaite; 50 repeated / group=strain; 51 LSMEANS STRAIN / ADJUST=TUKEY pdiff; 52 LSMEANS STRAIN / ADJUST=SCHEFFE pdiff; 53 LSMEANS STRAIN / ADJUST=BON pdiff; 54 *NOTE that normally only one post-ANOVA examination would be 55 done. We have done several here for comparison. ; 56 RUN; NOTE: Convergence criteria met. NOTE: The PROCEDURE MIXED printed page 1. NOTE: PROCEDURE MIXED used: real time 0.11 seconds cpu time 0.11 seconds EXST7015: DAYS TO DEATH FOR MICE INOCULATED WITH 3 TYPHOID STRAINS UNEQUAL NUMBER OF MICE IN EACH TREATMENT ANALYSIS OF VARIANCE with PROC MIXED The Mixed Procedure Model Information Data Set WORK.ONEBYONE Dependent Variable DAYS Covariance Structure Variance Components Group Effect STRAIN Estimation Method REML Residual Variance Method None Fixed Effects SE Method Model-Based Degrees of Freedom Method Satterthwaite Class Level Information Class Levels Values STRAIN 3 11C 9D DSC1...
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This note was uploaded on 12/29/2011 for the course EXST 7087 taught by Professor Wang,j during the Fall '08 term at LSU.

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16e-Anova-PostANOVA - EXST7015 : Statistical Techniques II...

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