Download pdf guide - VSN International

More documents

Recommendations

Info

80 6 Design and sample sizeFigure 6.11 shows the spreadsheetcontaining the design factors, and theskeleton analysis-of-variance table isshown below. The Control line in theanalysis of variance represents theoverall effect of any drug at any (nonzero)dose, Control.Drug representsoverall differences between the drugs(averaged over the two doses),Control.Dose represents thecomparison between the two doses(averaged over the different drugs), andFigure 6.11Control.Drug.Dose represents theinteraction between Drug and Dose (assuming that some sort of drug has been taken).Analysis of varianceSource of variationd.f.Laboratory stratum 3Laboratory.Subject stratumControl 1Control.Drug 2Control.Dose 1Control.Drug.Dose 2Residual 18Total 27The "factorial plus added control" treatment structure is not one of the constructs covereddirectly by the Analysis of Variance menu, although the necessary model formula can betyped explicitly into the Treatment Structure box that appears when General Analysis ofVariance or any of the General Treatment Structure settings are selected in the Design box(see Section 3.5). However, the spreadsheet also contains commands to analyse thedesign, which can be used as an alternative to the Analysis of Variance menus, when thedata values have been collected and entered as extra columns in the spreadsheet. Themenu is obtained by clicking Spread on the menu bar and selecting Sheet, followed byAnalysis.GenStat provides several more-specialized types of design. These are obtained byselecting Design from the Stats menu and then clicking on Select Design.6.4 PracticalModify the design that you set up in Practical 6.2 so that the first additive has twice asmany replicates as the second and third additives.
7 Balance and non-orthogonalityIn this chapter you will learn• how treatment terms can be confounded with block terms • the meaning of the efficiency factor, which measures how much information on atreatment term is contained in each stratum • how means are formed when treatments are estimated in several strata • the conditions for a design to be balanced, and analysable by the GenStat ANOVAdirective • how to analyse unbalanced designs with two treatment factors, using the One- andtwo-way Analysis of Variance menu• how to analyse unbalanced designs with several treatment factors, using theUnbalanced ANOVA menuNote: the topics marked are optional.
Page 1 and 2:
Anova and Design
Page 4 and 5:
ContentsIntroduction 11 From t-test
Page 6 and 7:
1 From t-test to one-way anovaIn th
Page 8 and 9:
4 1 From t-test to one-way anovaIf
Page 10 and 11:
6 1 From t-test to one-way anovaWe
Page 12 and 13:
8 1 From t-test to one-way anova1.2
Page 14 and 15:
10 1 From t-test to one-way anovawi
Page 16 and 17:
12 1 From t-test to one-way anovaAl
Page 18 and 19:
14 1 From t-test to one-way anovaYo
Page 20 and 21:
16 1 From t-test to one-way anovaFi
Page 22 and 23:
18 1 From t-test to one-way anovaTa
Page 24 and 25:
20 1 From t-test to one-way anovaTh
Page 26 and 27:
2 Blocking structuresThe blocking s
Page 28 and 29:
24 2 Blocking structuresBlock 1D4.6
Page 30 and 31:
26 2 Blocking structuresNow we repe
Page 32 and 33:
28 2 Blocking structureswould give
Page 34 and 35: 30 2 Blocking structuresAnalysis of
Page 36 and 37: 3 Treatment structureSo far we have
Page 38 and 39: 34 3 Treatment structureTables of m
Page 40 and 41: 36 3 Treatment structureFigure 3.3
Page 42 and 43: 38 3 Treatment structureThere is a
Page 44 and 45: 40 3 Treatment structureblock.*Unit
Page 46 and 47: 42 3 Treatment structureTables of c
Page 48 and 49: 44 3 Treatment structureN * Swas us
Page 50 and 51: 46 3 Treatment structureFumigant Am
Page 52 and 53: 48 3 Treatment structureFumigated S
Page 54 and 55: 50 3 Treatment structureCovariate 1
Page 56 and 57: 4 Checking the assumptionsIn this c
Page 58 and 59: 54 4 Checking the assumptions4.2 No
Page 60 and 61: 56 4 Checking the assumptions4.5 Tr
Page 62 and 63: 58 4 Checking the assumptionsFigure
Page 64 and 65: 60 4 Checking the assumptionsThe pr
Page 66 and 67: 62 4 Checking the assumptionsTotal
Page 68 and 69: 64 4 Checking the assumptionsMessag
Page 70 and 71: 66 5 Designs with several error ter
Page 78 and 79: 74 6 Design and sample size6.1 Desi
Page 80 and 81: 76 6 Design and sample sizeClicking
Page 82 and 83: 78 6 Design and sample sizeFigure 6
Page 86 and 87: 82 7 Balance and non-orthogonality7
Page 88 and 89: 84 7 Balance and non-orthogonalityA
Page 90 and 91: 86 7 Balance and non-orthogonalityT
Page 92 and 93: 88 7 Balance and non-orthogonalityF
Page 94 and 95: 90 7 Balance and non-orthogonalityf
Page 96 and 97: 92 7 Balance and non-orthogonality7
Page 98 and 99: 94 7 Balance and non-orthogonalityM
Page 100 and 101: 96 7 Balance and non-orthogonalityM
Page 102 and 103: 8 REML analysis of unbalanced desig
Page 104 and 105: 100 8 REML analysis of unbalanced d
Page 118 and 119: 9 Commands for analysis of variance
Page 120 and 121: 116 9 Commands for analysis of vari
Page 122 and 123: 118 9 Commands for analysis of vari
Page 124 and 125: IndexA2DISPLAY procedure 117A2WAY p
Page 126: 122 IndexTransformation 56logarithm
show all

Download pdf guide - VSN International

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?