19d-Anova_Design

19d-Anova_Design - EXST7015 : Statistical Techniques II...

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Unformatted text preview: EXST7015 : Statistical Techniques II Geaghan Analysis of Variance Experimental Design examples Page 1 19d-Anova_Design.doc 1 *******************************************************; 2 *** Example of CRD with 2 levels of error ***; 3 *** From Snedecor & Cochran, 1980 (pg 248) ***; 4 *******************************************************; 5 OPTIONS PS=256 LS=111 NOCENTER NODATE NONUMBER; 6 DATA CALCIUM; INFILE CARDS MISSOVER; 7 INPUT PLANT LEAF SAMPLE CALCIUM; 8 TITLE1 'CALCIUM CONCENTRATION IN TURNIP LEAVES'; 9 TITLE2 '4 PLANTS, 3 LEAVES AND 2 SAMPLES OF 100 MG PER LEAF'; 10 CARDS; NOTE: The data set WORK.CALCIUM has 24 observations and 4 variables. NOTE: DATA statement used: real time 0.06 seconds cpu time 0.06 seconds 10 ! RUN; 35 ; 36 PROC PRINT; TITLE3 'RAW DATA LISTING'; RUN; NOTE: There were 24 observations read from the data set WORK.CALCIUM. NOTE: The PROCEDURE PRINT printed page 1. NOTE: PROCEDURE PRINT used: real time 0.03 seconds cpu time 0.02 seconds CALCIUM CONCENTRATION IN TURNIP LEAVES 4 PLANTS, 3 LEAVES AND 2 SAMPLES OF 100 MG PER LEAF RAW DATA LISTING Obs PLANT LEAF SAMPLE CALCIUM 1 1 1 1 3.28 2 1 1 2 3.09 3 1 2 1 3.52 4 1 2 2 3.48 5 1 3 1 2.88 6 1 3 2 2.80 7 2 1 1 2.46 8 2 1 2 2.44 9 2 2 1 1.87 10 2 2 2 1.92 11 2 3 1 2.19 12 2 3 2 2.19 13 3 1 1 2.77 14 3 1 2 2.66 15 3 2 1 3.74 16 3 2 2 3.44 17 3 3 1 2.55 18 3 3 2 2.55 19 4 1 1 3.78 20 4 1 2 3.87 21 4 2 1 4.07 22 4 2 2 4.12 23 4 3 1 3.31 24 4 3 2 3.31 37 PROC MIXED DATA=CALCIUM cl covtest; CLASSES PLANT LEAF SAMPLE; 38 TITLE3 'Analysis OF Variance with PROC MIXED - Nested Error'; 39 MODEL CALCIUM = / htype=1 DDFM=Satterthwaite outp=ResidDataP; 40 RANDOM PLANT LEAF(PLANT); 41 RUN; NOTE: Convergence criteria met. NOTE: The data set WORK.RESIDDATAP has 24 observations and 11 variables. NOTE: The PROCEDURE MIXED printed page 2. NOTE: PROCEDURE MIXED used: real time 0.16 seconds cpu time 0.16 seconds 41 ! QUIT; EXST7015 : Statistical Techniques II Geaghan Analysis of Variance Experimental Design examples Page 2 19d-Anova_Design.doc CALCIUM CONCENTRATION IN TURNIP LEAVES 4 PLANTS, 3 LEAVES AND 2 SAMPLES OF 100 MG PER LEAF Analysis OF Variance with PROC MIXED - Nested Error The Mixed Procedure Model Information Data Set WORK.CALCIUM Dependent Variable CALCIUM Covariance Structure Variance Components Estimation Method REML Residual Variance Method Profile Fixed Effects SE Method Model-Based Degrees of Freedom Method Satterthwaite Class Level Information Class Levels Values PLANT 4 1 2 3 4 LEAF 3 1 2 3 SAMPLE 2 1 2 Dimensions Covariance Parameters 3 Columns in X 1 Columns in Z 16 Subjects 1 Max Obs Per Subject 24 Observations Used 24 Observations Not Used 0 Total Observations 24 Iteration History Iteration Evaluations -2 Res Log Like Criterion 0 1 49.90596741 1 1 2.17294242 0.00000000 Convergence criteria met....
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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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19d-Anova_Design - EXST7015 : Statistical Techniques II...

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