S convergence measure, 3030 
     saddle test, definition 
  MODECLUS procedure, 2879 
     salience of loadings, FACTOR procedure, 1294, 1327 
     Sampford's method 
  SURVEYSELECT procedure, 4455 
     sample design 
  SURVEYFREQ procedure, 4203 
     sample selection methods 
  SURVEYSELECT procedure, 4446 
     sample size 
  CATMOD procedure, 887 
  overview of power concepts (POWER), 3488 
  See GLMPOWER procedure, 1929 
  See POWER procedure, 3411 
  SURVEYSELECT procedure, 4440 
     sample size adjustment 
  GLMPOWER procedure, 1946 
  POWER procedure, 3494 
     sample survey analysis, ordinal data, 816 
       sampling rate, 165 
  SURVEYFREQ procedure, 4194, 4204 
  SURVEYLOGISTIC procedure, 4251, 4280 
  SURVEYMEANS procedure, 4324, 4334 
  SURVEYREG procedure, 4374, 4382 
  SURVEYSELECT procedure, 4439 
       sampling zeros 
  and log-linear analyses (CATMOD), 871 
  and structural zeros (CATMOD), 888 
     sandwich estimator 
  MIXED procedure, 2676 
     SAS Companion, 327, 336, 348 
      SAS data set 
  DATA step, 21 
  summarizing, 21, 22 
       SAS Results Viewer, 327, 336 
           Satterthwaite method 
  MIXED procedure, 2694 
     Satterthwaite  t  test 
  power and sample size (POWER), 3463, 3472, 3527 
     Satterthwaite's approximation , 4775, 4785 
  testing random effects, 1835 
     Savage scores 
  NPAR1WAY procedure, 3167 
     saving graphics image files 
  ODS Graphics, 336 
     saving templates 
  examples, ODS Graphics, 368 
     sawtooth power function, 3541 
     scale estimates 
  FASTCLUS procedure, 1390, 1392, 1397, 1399, 1400 
     scale parameter 
  GENMOD procedure, 1653 
     Scaled Residual 
  MIXED procedure, 2705 
     Scaled residuals 
  MIXED procedure, 2764 
     scaling variables 
  DISTANCE procedure, 1251 
  MODECLUS procedure, 2856 
  STDIZE procedure, 4143 
     scalogram analysis 
  CORRESP procedure, 1069 
     scatter plots 
  plots, ODS Graphics, 343, 351 
     Scheff 's multiple-comparison procedure, 1810 
     Scheff 's multiple-comparison procedure, 444 
     Scheff 's multiple-comparison procedure, 1769 
     Schoenfeld residuals 
  PHREG procedure, 3234, 3258 
     Schwarz criterion 
  LOGISTIC procedure, 2341 
  SURVEYLOGISTIC procedure, 4279 
     Schwarz's Bayesian information criterion 
  example (MIXED), 2780, 2794, 2823 
  MIXED procedure, 2676, 2740, 2750 
     SCORE procedure 
  CALIS procedure, 571, 586, 643 
  computational resources, 4075 
  examples, 4067, 4075 
  input data set, 4072 
  OUT= data sets, 4075 
  output data set, 4072, 4075 
  PRINCOMP procedure, 3611 
  regression parameter estimates from REG procedure, 4074 
  scoring coefficients, 4065 
     score residuals 
  PHREG procedure, 3234, 3259 
     score statistics 
  GENMOD procedure, 1668 
  LOGISTIC procedure, 2343 
  SURVEYLOGISTIC procedure, 4287 
     score test 
  PHREG procedure, 3229, 3231, 3246, 3269, 3274, 3276 
  TPHREG procedure, 4486 
     score variables 
  interpretation (SCORE), 4074 
     scores 
  NPAR1WAY procedure, 3166 
     scoring 
  MIXED procedure, 2674, 2680, 2774 
     scoring coefficients (SCORE), 4065 
      screening design, analysis, 1895 
     screening experiments 
  GLMMOD procedure, 1923 
     SDF, 
  See survival distribution function 
     selecting graphs 
  examples, ODS Graphics, 330, 352, 361 
  ODS Graphics, 330 
     selection methods, 
  See model selection 
     semiparametric model 
  PHREG procedure, 3215 
     semipartial correlation 
  CANCORR procedure, 762 
  formula (CLUSTER), 984 
     semivariogram 
  computation (VARIOGRAM), 4876, 4877 
  empirical (or experimental) (VARIOGRAM), 4856, 4858 
  robust (VARIOGRAM), 4861, 4869, 4877 
     sensitivity 
  CATMOD procedure, 941 
     sequential random sampling 
  SURVEYSELECT procedure, 4448 
     serpentine sorting 
  SURVEYSELECT procedure, 4445 
     Shape distance coefficient 
  DISTANCE procedure, 1271 
     Shewhart control charts , 23 
     Sidak (MULTTEST) 
   p  -value adjustments, 2942, 2956, 2972 
     Sidak's  t  test, 1769, 1810 
     Sidak's adjustment 
  GLM procedure, 1754 
  MIXED procedure, 2688 
  MULTTEST procedure, 2942, 2956, 2972 
      Siegel-Tukey scores 
  NPAR1WAY procedure, 3167 
     significance level 
  CALIS procedure, 588 
  entry (PHREG), 3230 
  hazards ratio confidence interval (PHREG), 3233 
  removal (PHREG), 3230, 3277 
     significance tests 
  MODECLUS procedure, 2876, 2916 
     sill 
  KRIGE2D procedure, 2047 
     SIM2D procedure 
  Cholesky root, 4107 
  computational details, 4109 
  conditional and unconditional simulation, 4091 
  conditional distributions of multivariate normal random variables, 4108 
  examples, 4092, 4111 
  Gaussian assumption, 4091 
  Gaussian random field, 4091 
  LU decomposition, 4106 
  memory usage, 4110 
  output data sets, 4099, 4110 
  OUTSIM= data set, 4110 
  quadratic form, 4108 
  simulation of spatial random fields, 4106-4109 
     similarity data 
  MDS procedure, 2471, 2478, 2484 
     Similarity Ratio coefficient 
  DISTANCE procedure, 1272 
     simple cluster-seeking algorithm, 1381 
     simple effects 
  GLM procedure, 1758, 1817 
  MIXED procedure, 2691 
     simple kappa coefficient, 1493, 1495 
     Simple Matching coefficient 
  DISTANCE procedure, 1274 
     Simple Matching dissimilarity coefficient 
  DISTANCE procedure, 1274 
     simple random cluster sampling 
  SURVEYREG procedure, 4397 
     simple random sampling 
  SURVEYMEANS procedure, 4315 
  SURVEYREG procedure, 4365, 4395 
  SURVEYSELECT procedure, 4423, 4447 
     simplicity functions 
  CALIS procedure, 607 
  FACTOR procedure, 1294, 1316, 1329 
     SIMPLS method 
  PLS procedure, 3380 
     simulation of spatial random fields 
  SIM2D procedure, 4106-4109 
     simulation-based adjustment 
  GLM procedure, 1754 
  MIXED procedure, 2688 
     single linkage 
  CLUSTER procedure, 967, 982 
     singularities 
  MIXED procedure, 2775 
  REG procedure, 3917 
     singularity 
  MI procedure, 2521 
     singularity checking 
  CANCORR procedure, 762 
  GLM procedure, 1750, 1752, 1758, 1772 
     singularity criterion 
  CALIS procedure, 590 
  contrast matrix (GENMOD), 1632 
  contrast matrix (LOGISTIC), 2300 
  contrast matrix (SURVEYLOGISTIC), 4258 
  contrast matrix (TPHREG), 4481 
  covariance matrix (CALIS), 588, 590, 591 
  information matrix (GENMOD), 1642 
  PHREG procedure, 3232 
  TRANSREG procedure, 4579 
     singularity level 
  SURVEYREG procedure, 4377, 4379 
     singularity tolerances 
  NLMIXED procedure, 3072 
     Size distance coefficient 
  DISTANCE procedure, 1271 
     skewness 
  CALIS procedure, 658 
  displayed in CLUSTER procedure, 972 
     SMM multiple-comparison method, 444, 1769, 1811 
     smoothing parameter 
  cluster analysis, 979 
  MODECLUS procedure, 2864, 2871 
  optimal ( DISCRIM ), 1162 
     smoothing parameter, default 
  MODECLUS procedure, 2872 
     smoothing spline transformation 
  PRINQUAL procedure, 3663 
  TRANSREG procedure, 4564, 4596 
     Sokal and Sneath 1 coefficient 
  DISTANCE procedure, 1274 
     Sokal and Sneath 3 coefficient 
  DISTANCE procedure, 1275 
     Somers'  D  statistics, 1474, 1478 
     spacing 
  STDIZE procedure, 4139 
     spatial anisotropic exponential structure 
  MIXED procedure, 2721 
     spatial covariance structures 
  examples (MIXED), 2723 
  MIXED procedure, 2722, 2730, 2774 
     spatial prediction 
  VARIOGRAM procedure, 4851, 4852 
     Spearman rank correlation coefficient, 1474, 1480 
     specificity 
  CATMOD procedure, 941 
     spherical semivariogram model 
  KRIGE2D procedure, 2046, 2047 
     sphericity tests, 449, 1780, 1881 
     spline t-options 
  PRINQUAL procedure, 3665 
  TRANSREG procedure, 4566 
     spline transformation 
  PRINQUAL procedure, 3662 
  TRANSREG procedure, 4564, 4611 
     splines 
  Bayesian confidence intervals, 4513 
  goodness of fit, 4514 
  regression model, 4497, 4513, 4518 
  thin-plate smoothing, 4497 
  TPSPLINE procedure, 4497 
  TRANSREG procedure, 4560, 4561, 4614, 4637, 4678, 4709 
     split-plot design 
  ANOVA procedure, 451, 470, 472, 475 
  generating with PLAN procedure, 3352 
  MIXED procedure, 2734, 2777 
     square root difference cloud 
  VARIOGRAM procedure, 4882 
     Squared Correlation dissimilarity coefficient 
  DISTANCE procedure, 1272 
     Squared Correlation similarity coefficient 
  DISTANCE procedure, 1272 
     Squared Euclidean distance coefficient 
  DISTANCE procedure, 1271 
     squared multiple correlation 
  CALIS procedure, 657, 686 
  CANCORR procedure, 762 
     squared partial correlation 
  CANCORR procedure, 762 
     squared semipartial correlation 
  CANCORR procedure, 762 
  formula (CLUSTER), 984 
     SSCP matrix 
  displaying, for multivariate tests, 438, 439 
  for multivariate tests, 437 
  for multivariate tests (GLM), 1759, 1761 
     stacking table 
  SURVEYMEANS procedure, 4324 
     standard deviation 
  CLUSTER procedure, 972 
  SURVEYMEANS procedure, 4341 
     standard error 
  PHREG procedure, 3225, 3233, 3235, 3269 
  SURVEYMEANS procedure, 4338 
  TPHREG procedure, 4487 
     standard error of ratio 
  SURVEYMEANS procedure, 4339 
     standard error ratio 
  PHREG procedure, 3269 
  TPHREG procedure, 4487 
     standard linear model 
  MIXED procedure, 2663 
     STANDARD procedure, 21 
  standardized values, 21 
     standardization 
  comparisons between DISTANCE and STDIZE procedures, 1251 
     standardized score process 
  PHREG procedure, 3267, 3271 
     standardizing 
  cluster analysis (STDIZE), 4143 
  CLUSTER procedure, 972 
  MODECLUS procedure, 2856 
  raw data (SCORE), 4066 
  redundancy variables (TRANSREG), 4591 
  TRANSREG procedure, 4572 
  values (STANDARD), 21 
  values (STDIZE), 4119 
     star (*) operator 
  TRANSREG procedure, 4558 
     stationary point 
  NLMIXED procedure, 3100 
     statistic-keywords 
  SURVEYMEANS procedure, 4326 
     statistical 
  assumptions (GLM), 1783 
  quality control, 23 
  tests (MULTTEST), 2948 
     statistical computation 
  SURVEYMEANS procedure, 4336 
     statistical computations 
  SURVEYFREQ procedure, 4206 
     Statistical Graphics Using ODS, 
  see ODS Graphics 
     Statistical style 
  ODS styles, 333 
     STD option (MODECLUS), 2856 
     STD= option (DISTANCE), 1265 
     STDIZE procedure 
  AGK estimate, 4139 
  analyzing data in groups, 4134 
  Andrew's wave estimate, 4139 
  breakdown point and efficiency, 4138 
  comparisons of quantile computation, 
  PCTLMTD option, 4139 
  computational methods, PCTLDEF option, 4140 
  Euclidean length, 4138 
  examples, 4119, 4143 
  final output value, 4119 
  formulas for statistics, 4138 
  fuzz factor, 4130 
  Huber's estimate, 4139 
  initial estimates for A estimates, 4131 
  input data set (METHOD=IN()), 4137 
  methods resistant to clustering, 4138 
  methods resistant to outliers, 4124, 4138 
  Minkowski metric, 4138 
  missing values, 4131, 4133, 4141 
  normalization, 4131, 4133 
  one-pass quantile computations, 4139 
  OUT= data set, 4130, 4141 
  output data sets, 4132, 4141 
  output table names , 4142 
  OUTSTAT= data set, 4141 
  quantile computation, 4119, 4139 
  robust estimators, 4138 
  spacing, 4139 
  standardization methods, 4119, 4136 
  standardization with weights, 4135 
  Tukey's biweight estimate, 4127, 4139 
  tuning constant, 4127, 4137 
  unstandardization, 4133 
  weights, 4135 
     step halving 
  PHREG procedure, 3245 
     step length 
  CALIS procedure, 581 
     step length options 
  NLMIXED procedure, 3096 
     STEPDISC procedure 
  average squared canonical correlation, 4173 
  computational resources, 4171 
  input data sets, 4170 
  introductory example, 4158 
  memory requirements, 4171 
  methods, 4157 
  missing values, 4170 
  ODS table names, 4174 
  Pillai's trace, 4173 
  stepwise selection, 4159 
  time requirements, 4171 
  tolerance, 4173 
  Wilks' lambda, 4173 
     stepdown methods 
  GLM procedure, 1814 
  MULTTEST procedure, 2957, 2972 
     stepwise discriminant analysis, 4157 
     stepwise selection 
  LOGISTIC procedure, 2317, 2341, 2391 
  PHREG procedure, 3229, 3265, 3272 
  REG procedure, 3800, 3874 
  STEPDISC procedure, 4159 
     stored data algorithm, 986 
     stored distance algorithms, 986 
     strata 
  SURVEYFREQ procedure, 4196 
  SURVEYLOGISTIC procedure, 4266 
  SURVEYMEANS procedure, 4332 
  SURVEYREG procedure, 4381 
     strata variables 
  PHREG procedure, 3237 
  programming statements (PHREG), 3235 
     strata weights 
  MULTTEST procedure, 2951 
     stratification 
  SURVEYFREQ procedure, 4196, 4203 
  SURVEYLOGISTIC procedure, 4266 
  SURVEYMEANS procedure, 4332, 4346 
  SURVEYREG procedure, 4381, 4391 
     stratified analysis 
  FREQ procedure, 1431, 1450 
  PHREG procedure, 3216, 3237 
     stratified cluster sample 
  SURVEYMEANS procedure, 4350 
     stratified sampling, 164 
  SURVEYMEANS procedure, 4318 
  SURVEYREG procedure, 4368, 4401 
  SURVEYSELECT procedure, 4425, 4444 
     stratified table 
  example, 1540 
     stratified tests 
  LIFETEST procedure, 2150, 2155, 2156, 2158, 2167, 2180, 2187 
     stratum collapse 
  SURVEYREG procedure, 4388, 4411 
     stress formula 
  MDS procedure, 2479, 2480, 2489 
     strip-split-plot design 
  ANOVA procedure, 475 
     structural equation (CALIS) 
  definition, 585, 625, 658 
  dependent variables, 625 
  models, 552 
     structural model example (CALIS), 555 
  COSAN model, 561 
  factor analysis model, 564 
  LINEQS model, 558, 562 
  LISREL model, 559 
  path diagram, 555, 600 
  RAM model, 557, 563 
     Stuart's tau-  c  statistic, 1474, 1478 
     Student's multiple range test, 444, 1769, 1814 
     Studentized maximum modulus 
  pairwise comparisons, 444, 1769, 1811 
     Studentized Residual 
  MIXED procedure, 2704 
     studentized residual, 1774, 3899 
     Studentized residuals 
  external, 2768 
  internal, 2768 
  MIXED procedure, 2768 
     style attributes, modifying 
  examples, ODS Graphics, 374, 376, 378 
     style elements, modifying 
  examples, ODS Graphics, 374, 376, 378 
     subdomain analysis 
  SURVEYFREQ procedure, 4205 
  SURVEYMEANS procedure, 4336 
     subgroup analysis 
  SURVEYFREQ procedure, 4205 
  SURVEYMEANS procedure, 4336 
     subject effect 
  MIXED procedure, 2683, 2715, 2721, 2776, 2782 
     subject weights 
  MDS procedure, 2471, 2477 
     subpopulation 
  GENMOD procedure, 1637 
  LOGISTIC procedure, 2308, 2316, 2355 
  PROBIT procedure, 3742, 3745, 3761 
     subpopulation analysis 
  SURVEYFREQ procedure, 4205 
  SURVEYMEANS procedure, 4336 
     sum-to-zero assumptions, 1835 
     summary of commands 
  MIXED procedure, 2672 
     summary statistics 
  REG procedure, 3896 
     sums of squares 
  GLM procedure, 1772, 1773 
  Type II (GLM), 1773 
  Type II (TRANSREG), 4580 
     supported operating environments 
  ODS Graphics, 348 
     supported procedures 
  ODS Graphics, 348 
     suppressing output 
  CANCORR procedure, 761 
  GENMOD procedure, 1627 
  MI procedure, 2520 
     surface plots 
  plots, ODS Graphics, 324, 360 
     surface trend 
  VARIOGRAM procedure, 4854 
     survey data analysis, 161 
     survey sampling, 161, 
  see also SURVEYFREQ procedure 
  see also SURVEYMEANS procedure 
  see also SURVEYREG procedure 
  see also SURVEYSELECT procedure 
  cluster sampling, 164 
  data analysis, 4185 
  descriptive statistics, 4315 
  finite population correction factor, 165 
  first-stage sampling unit, 165 
  fpc, 165 
  multistage sampling, 165 
  population, 164 
  population total, 165 
  PPS, 161 
  primary sampling units (PSUs), 165 
  regression analysis, 4365 
  sample selection, 4421 
  sampling fraction, 165 
  sampling frame, 164 
  sampling rate, 165 
  sampling unit, 164 
  sampling weight, 165 
  stratified sampling, 164 
  survey weight, 165 
  SURVEYMEANS procedure, 167 
  SURVEYREG procedure, 167 
  SURVEYSELECT procedure, 167 
  variance estimation, 166 
      SURVEYFREQ procedure, 159, 4185 
  alpha level, 4199 
  chi-square test, 4216 
  cluster, 4195 
  clustering, 4203 
  coefficient of variation, 4214 
  column proportions , 4212 
  confidence limits, 4213 
  covariance, 4210 
  crosstabulation tables, 4227 
  data summary table, 4225 
  default tables, 4197 
  degrees of freedom, 4214 
  design effect, 4215 
  design-adjusted chi-square test, 4216 
  displayed output, 4225 
  domain analysis, 4205 
  expected weighted frequency, 4215 
  introductory example, 4185 
  missing values, 4205 
  multiway tables, 4227 
  ODS table names, 4230 
  one-way frequency tables, 4226 
  order of variables, 4193 
  output table names, 4230 
  population total, 4194, 4204 
  proportions, 4210 
  Rao-Scott chi-square test, 4216 
  Rao-Scott likelihood ratio test, 4219 
  row proportions, 4212 
  sample design, 4203 
  sampling rate, 4194, 4204 
  statistical computations, 4206 
  statistical test tables, 4229 
  strata, 4196 
  stratification, 4196, 4203 
  stratum information table, 4225 
  subdomain analysis, 4205 
  subgroup analysis, 4205 
  subpopulation analysis, 4205 
  Taylor series method, 4206 
  totals, 4209 
  unequal weighting , 4204 
  Wald chi-square test, 4221 
  Wald log-linear chi-square test, 4223 
     SURVEYLOGISTIC procedure, 159 
  Akaike's information criterion, 4279 
  cluster, 4255 
  computational details, 4282 
  confidence intervals, 4288 
  convergence criterion, 4261-4263 
  customized odds ratio, 4267 
  displayed output, 4292 
  EFFECT Parameterization, 4270 
  estimability checking, 4258 
  existence of MLEs, 4277 
  first-stage sampling rate, 4251 
  Fisher's scoring method, 4264, 4265, 4276 
  GLM Parameterization, 4271 
  gradient, 4287 
  Hessian matrix, 4264, 4287 
  infinite parameter estimates, 4263 
  initial values, 4280 
  link function, 4243, 4263, 4273 
  log odds, 4289 
  maximum likelihood algorithms, 4275 
  Medical Expenditure Panel Survey (MEPS), 4302 
  missing values, 4251, 4268 
  model fitting criteria, 4279 
  Newton-Raphson algorithm, 4264, 4265, 4277 
  odds ratio confidence limits, 4262 
  odds ratio estimation, 4288 
  ORDINAL Parameterization, 4271 
  ORTHEFFECT Parameterization, 4272 
  ORTHORDINAL Parameterization, 4272 
  ORTHOTHERM Parameterization, 4272 
  ORTHPOLY Parameterization, 4273 
  ORTHREF Parameterization, 4273 
  output table names, 4295 
  Parameterization, 4270 
  POLY Parameterization, 4271 
  POLYNOMIAL Parameterization, 4271 
  population total, 4252, 4280 
  primary sampling units (PSUs), 4281 
  rank correlation, 4292 
  REF Parameterization, 4272 
  REFERENCE Parameterization, 4272 
  response level ordering, 4270 
  reverse response level ordering, 4259, 4269 
  sampling rate, 4251, 4280 
  Schwarz criterion, 4279 
  score statistics, 4287 
  singular contrast matrix, 4258 
  strata, 4266 
  stratification, 4266 
  testing linear hypotheses, 4266, 4288 
  Variance Estimation, 4282 
     SURVEYMEANS procedure, 159, 4315 
  categorical variable, 4329, 4337, 4341 
  class level, 4346 
  cluster, 4329 
  coefficient of variation, 4340 
  confidence level, 4323 
  confidence limits, 4340, 4342 
  data summary, 4346 
  degrees of freedom, 4340, 4344 
  denominator variable, 4330 
  descriptive statistics, 4347 
  domain analysis, 4336, 4348 
  domain mean, 4343 
  domain statistics, 4342 
  domain total, 4343 
  domain variable, 4330 
  empty stratum, 4334, 4344 
  estimated frequency, 4341 
  estimated total, 4341 
  first-stage sampling rate, 4324 
  indicator variable, 4337 
  mean per element, 4337 
  means, 4337 
  missing values, 4323, 4333, 4358 
  numerator variable, 4330 
  ODS table names, 4349 
  output data set, 4321, 4345 
  output table names, 4349 
  population total, 4326, 4334 
  primary sampling units (PSUs), 4335 
  proportion estimation, 4341 
  ratio, 4330, 4339 
  ratio analysis, 4330, 4339, 4348 
  rectangular table, 4324 
  sampling rate, 4324, 4334 
  simple random sampling, 4315 
  stacking table, 4324 
  standard deviation of the total, 4341 
  standard error of ratio, 4339 
  standard error of the mean, 4338 
  statistic-keywords, 4326 
  statistical computation, 4336 
  strata, 4332 
  stratification, 4332, 4346 
  stratified cluster sample, 4350 
  stratified sampling, 4318 
  subdomain analysis, 4336 
  subgroup analysis, 4336 
  subpopulation analysis, 4336 
   t  test, 4339 
  valid observation, 4346 
  variance of the mean, 4338 
  variance of the total, 4341 
     SURVEYREG procedure, 159, 4365 
  ADJRSQ, 4380 
  Adjusted R-square, 4387 
  analysis of contrasts, 4393 
  analysis of variance, 4387 
  ANOVA, 4380, 4387, 4392 
  classification level, 4391 
  classification variables, 4375 
  cluster, 4376 
  coefficients of contrast, 4392 
  coefficients of estimate, 4393 
  computational details, 4384 
  confidence level, 4373 
  confidence limits, 4380 
  contrasts, 4376, 4389 
  data summary, 4390 
  degrees of freedom, 4385 
  design effect, 4388 
  design summary, 4390 
  effect testing, 4386, 4392 
  estimable functions, 4378, 4393 
  first-stage sampling rate, 4374 
  inverse matrix of  X    ²    X  , 4391 
  missing values, 4382 
  MSE, 4388 
  multiple R-square, 4387 
  output data set, 4372, 4393 
  output table names, 4394 
  pooled stratum, 4389 
  population total, 4374, 4382 
  primary sampling units (PSUs), 4383 
  regression coefficients, 4384, 4392 
  regression estimator, 4400, 4407 
  Root MSE, 4388 
  sampling rate, 4374, 4382 
  simple random cluster sampling, 4397 
  simple random sampling, 4365, 4395 
  singularity level, 4377, 4379 
  strata, 4381 
  stratification, 4381, 4391 
  stratified sampling, 4368, 4401 
  stratum collapse, 4388, 4411 
  variance estimation, 4385 
  Wald test, 4386, 4389 
   X   ²   X  matrix, 4391 
     SURVEYSELECT procedure, 167, 4421 
  Brewer's method, 4453 
  certainty size measure, 4432 
  Chromy's method, 4448, 4452 
  control sorting, 4443, 4445 
  displayed output, 4458 
  dollar-unit sampling, 4466 
  initial seed, 4441 
  introductory example, 4422 
  joint selection probabilities, 4433 
  maximum size measure, 4433 
  minimum size measure, 4436 
  missing values, 4445 
  Murthy's method, 4454 
  output data sets, 4456 
  output table names, 4460 
  PPS sampling, 4463 
  PPS sampling, with replacement, 4451 
  PPS sampling, without replacement, 4449 
  PPS sequential sampling, 4452 
  PPS systematic sampling, 4451 
  replicated sampling, 4438, 4460 
  Sampford's method, 4455 
  sample selection methods, 4446 
  sample size, 4440 
  sampling rate, 4439 
  sequential random sampling, 4448 
  serpentine sorting, 4445 
  simple random sampling, 4423, 4447 
  stratified sampling, 4425, 4444 
  systematic random sampling, 4448 
  unrestricted random sampling, 4447 
     survival analysis 
  power and sample size (POWER), 3473, 3481, 3533 
     survival distribution function 
  LIFETEST procedure, 2149, 2171, 2184 
  PHREG procedure, 3239 
     survival function 
  LIFEREG procedure, 2083, 2111 
     survival models, parametric, 2083 
     survival times 
  PHREG procedure, 3215, 3281, 3283 
     survivor function, 
  See survival distribution function 
  definition (PHREG), 3239 
  estimates (LOGISTIC), 2460 
  estimates (PHREG), 3225, 3235, 3261, 3299 
  PHREG procedure, 3215, 3235, 3240 
     sweep algorithm 
  REG procedure, 3917 
     symmetric and positive definite (SIM2D) 
  covariance matrix, 4107 
     symmetric binary variable 
  DISTANCE procedure, 1250 
     syntax 
  ROBUSTREG procedure, 3982 
     systematic random sampling 
  SURVEYSELECT procedure, 4448