SAS/STAT 9.1 Users Guide, Volumes 1-7

W

Wald chi-square test

SURVEYFREQ procedure, 4221

Wald log-linear chi-square test

SURVEYFREQ procedure, 4223

WALD option

CONTRAST statement (GENMOD), 1633

MODEL statement (GENMOD), 1643

Wald test

mixed model (MIXED), 2741, 2786

MIXED procedure, 2750, 2751

modification indices (CALIS), 584, 674

PHREG procedure, 3238, 3246, 3247, 3269, 3284

probability limit (CALIS), 590

PROBIT procedure, 3756

SURVEYREG procedure, 4386, 4389

TPHREG procedure, 4486

WALDCI option

MODEL statement (GENMOD), 1643

WALDCL option

MODEL statement (LOGISTIC), 2319

WALDRL option

MODEL statement (LOGISTIC), 2315

WALLER option

MEANS statement (ANOVA), 445

MEANS statement (GLM), 1769

Waller-Duncan test, 445, 1769, 1815

error seriousness ratio, 443, 1768

examples, 1851

multiple comparison (ANOVA), 464

Wampler data set, 3208

Ward's minimum-variance method

CLUSTER procedure, 967, 983

WAXIS= option

PLOT statement (BOXPLOT), 511

WCHISQ option

TABLES statement (SURVEYFREQ), 4202

WCONF= option

MCMC statement (MI), 2526

WCONNECT= option

MCMC statement (MI), 2530

WCORR option

PROC CANDISC statement, 792

PROC DISCRIM statement, 1153

PROC STEPDISC statement, 4168

WCOV option

PROC CANDISC statement, 792

PROC DISCRIM statement, 1153

PROC MIANALYZE statement, 2616

PROC STEPDISC statement, 4168

TEST statement (MIANALYZE), 2619

WDEP option

PROC CANCORR statement, 763

Wei-Lin-Weissfeld model

PHREG procedure, 3248

Weibull distribution, 2083, 2097, 2111

WEIGHT option

PROC FACTOR statement, 1320

WEIGHT statement

CALIS procedure, 627

CANDISC procedure, 794

CATMOD procedure, 860

CORRESP procedure, 1082

DISCRIM procedure, 1156

FACTOR procedure, 1322

FREQ procedure, 1463

GENMOD procedure, 1650

GLM procedure, 1782

GLMMOD procedure, 1916

GLMPOWER procedure, 1938

KDE procedure, 2002

LIFEREG procedure, 2108

LOESS procedure, 2237

LOGISTIC procedure, 2328

MDS procedure, 2487

MIXED procedure, 2730

ORTHOREG procedure, 3203

PHREG procedure, 3239

PRINCOMP procedure, 3608

PRINQUAL procedure, 3667

REG procedure, 3859

ROBUSTREG procedure, 3992

RSREG procedure, 4044

STEPDISC procedure, 4169

SURVEYFREQ procedure, 4203

SURVEYMEANS procedure, 4333

SURVEYREG procedure, 4382

TRANSREG procedure, 4592

TTEST procedure, 4783

VARCLUS procedure, 4814

weight variable

PRINQUAL procedure, 3667

WEIGHT= option

OUTPUT statement (NLIN), 3014

REWEIGHT statement (REG), 3857

STRATA statement (MULTTEST), 2946, 2951

weighted average linkage

CLUSTER procedure, 967, 981

weighted Euclidean distance

MDS procedure, 2472, 2477, 2488

weighted Euclidean model

MDS procedure, 2471, 2477

weighted kappa coefficient, 1493, 1496

weighted least squares

CATMOD procedure, 817, 846

formulas (CATMOD), 894

MDS procedure, 2487

normal equations (GLM), 1783

weighted means

GLM procedure, 1820

weighted pair- group methods ,

See McQuitty's similarity analysis

See median method

weighted product-moment correlation coefficients

CANCORR procedure, 764

weighted Schoenfeld residuals

PHREG procedure, 3235, 3259

weighted score residuals

PHREG procedure, 3260

weighted-group method,

See centroid method

WEIGHTFUNCTIONT option

PROC ROBUSTREG statement, 3985

weighting

MIXED procedure, 2730

weighting variables

FACTOR procedure, 1333

WEIGHTS= option

VAR statement, 1267

WELCH option

MEANS statement (ANOVA), 445

MEANS statement (GLM), 1769

Welch t test

power and sample size (POWER), 3463, 3472, 3527

Welch's ANOVA, 445, 1769

homogeneity of variance tests, 1819

using homogeneity of variance tests, 1893

Welsch's multiple range test, 444, 1768, 1815

examples, 1851

WGRID= option

PLOT statement (BOXPLOT), 511

WGT statement

DISTANCE procedure, 1269

STDIZE procedure, 4135

WHERE statement

ANOVA procedure, 454

GLM procedure, 1787

width, confidence intervals, 3488

WIDTH= option

PROC LIFETEST statement, 2165

WILCOXON option

EXACT statement (NPAR1WAY), 3160

OUTPUT statement (NPAR1WAY), 3162

PROC NPAR1WAY statement, 3158

Wilcoxon scores

NPAR1WAY procedure, 3166

Wilcoxon test for association

LIFETEST procedure, 2150

Wilcoxon test for homogeneity

LIFETEST procedure, 2150, 2168, 2178

Wilks' criterion, 437, 1759

Wilks' lambda, 1828

Williams' method

overdispersion (LOGISTIC), 2355

windowing environment, 327, 338

within-cluster SSCP matrix

ACECLUS procedure, 387

within-imputation covariance matrix

MIANALYZE procedure, 2626

within-imputation variance

MI procedure, 2561

MIANALYZE procedure, 2624

within-subject factors

repeated measures, 1777, 1828

WITHIN= option

REPEATED statement (GENMOD), 1649

WITHINSUBJECT= option

REPEATED statement (GENMOD), 1649

WLF option

MCMC statement (MI), 2524, 2529, 2530

WLLCHISQ option

TABLES statement (SURVEYFREQ), 4202

WLS option

MODEL statement (CATMOD), 846

WN= option

PROC CANCORR statement, 763

WNAME= option

PROC CANCORR statement, 763

WNEEDLES= option

MCMC statement (MI), 2526

Wong's hybrid method

CLUSTER procedure, 969, 978

working correlation matrix

GENMOD procedure, 1647, 1648, 1672

worst linear function of parameters

MI procedure, 2556

WOVERLAY= option

PLOT statement (BOXPLOT), 511

WP= option

PROC CANCORR statement, 763

WPENALTY= option

PROC CALIS statement, 576

WPGMA,

See McQuitty's similarity analysis

WPGMC,

See median method

WPREFIX= option

PROC CANCORR statement, 763

WREF= option

MCMC statement (MI), 2526

WREG option

PROC CANCORR statement, 762

WRIDGE= option

PROC CALIS statement, 577

WSSCP option

PROC CANDISC statement, 793

PROC DISCRIM statement, 1153

PROC STEPDISC statement, 4168

WTFREQ option

TABLES statement (SURVEYFREQ), 4202

WTKAP option

EXACT statement (FREQ), 1444

OUTPUT statement (FREQ), 1449

TEST statement (FREQ), 1463