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 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

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

Wei-Lin-Weissfeld model

PHREG procedure, 3248

Weibull distribution, 2083, 2097, 2111

weight variable

PRINQUAL procedure, 3667

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

weighting

MIXED procedure, 2730

weighting variables

FACTOR procedure, 1333

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

WHERE statement

GLM procedure, 1787

width, confidence intervals, 3488

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

Wong's hybrid method

CLUSTER procedure, 969, 978

working correlation matrix

GENMOD procedure, 1647, 1648, 1672

worst linear function of parameters

MI procedure, 2556

WPGMA,

See McQuitty's similarity analysis

WPGMC,

See median method