Index_V

V

V matrix

MIXED procedure, 2716

valid observation

SURVEYMEANS procedure, 4346

value lists

GLMPOWER procedure, 1945

POWER procedure, 3490

Van der Waerden scores

NPAR1WAY procedure, 3167

VAR statement, use

CORRESP procedure, 1072

VARCLUS procedure,

See also TREE procedure

alternating least-squares, 4800

analyzing data in groups, 4813

centroid component, 4802, 4808

cluster components , 4799

cluster splitting, 4800, 4806, 4810, 4811

cluster, definition, 4799

computational resources, 4818

controlling number of clusters, 4810

eigenvalues, 4800, 4810

how to choose options, 4815

initializing clusters, 4809

interpreting output, 4818

iterative reassignment, 4800

MAXCLUSTERS= option, using, 4815

MAXEIGEN= option, using, 4815

memory requirements, 4818

missing values, 4814

multiple group component analysis, 4811

nearest component sorting phase, 4800

number of clusters, 4800, 4806, 4810, 4811

orthoblique rotation, 4800, 4809

output data sets, 4811, 4816

output table names , 4820

OUTSTAT= data set, 4811, 4816

OUTTREE= data set, 4817

PROPORTION= option, using, 4815

search phase, 4800

splitting criteria, 4800, 4806, 4810, 4811

stopping criteria, 4806

time requirements, 4815, 4818

TYPE=CORR data set, 4816

VARCOMP procedure

classification variables , 4836

compared to MIXED procedure, 2664, 2665

compared to other procedures, 1735

computational details, 4838

dependent variables, 4831, 4836

example (MIXED), 2795

fixed effects, 4831, 4837

fixed-effects model, 4837

introductory example, 4832

methods of estimation, 4831, 4842

missing values, 4837

mixed model, 4837

negative variance components, 4838

ODS table names, 4840

random effects, 4831, 4837

random-effects model, 4837

relationship to PROC MIXED, 4841

variability, 4832

variance component, 4838

variability

VARCOMP procedure, 4832

variable (PHREG)

censoring, 3218

variable importance for projection, 3396

variable list macros

TRANSREG procedure, 4588

variable selection

CALIS procedure, 662

discriminant analysis, 4157

variable-radius kernels

MODECLUS procedure, 2870

variable-reduction method, 4799

variables,

See also classification variables

frequency (PRINQUAL), 3658

renaming (PRINQUAL), 3666

reusing (PRINQUAL), 3666

weight (PRINQUAL), 3667

variables, unaddressed

INBREED procedure, 1976

variance component

VARCOMP procedure, 4838

variance components, 2985

MIXED procedure, 2662, 2721

Variance Estimation

SURVEYLOGISTIC procedure, 4282

variance estimation, 166

SURVEYREG procedure, 4385

variance function

GENMOD procedure, 1614

variance inflation factors (VIF)

REG procedure, 3818, 3958

variance of means

LATTICE procedure, 2074

variance of the mean

SURVEYMEANS procedure, 4338

variance of the total

SURVEYMEANS procedure, 4341

variance ratios

MIXED procedure, 2707, 2714

variances

FACTOR procedure, 1320

ratio of, 4775, 4784, 4789

variances, test for equal, 1150

varimax method, 1291, 1317, 1318

VARIOGRAM procedure

angle classes, 4866, 4868, 4870, 4872, 4873

angle tolerance, 4866, 4868, 4870, 4872, 4873

anisotropic models, 4871

bandwidth, 4866, 4870, 4875

continuity measures, 4851

contour map, 4856

correlation length, 4860

cutoff distance, 4869

DATA= data set, 4865

distance classification, 4874

distance interval, 4856

empirical (or experimental) semivariogram, 4858

examples, 4852, 4882

histogram of pairwise distances, 4856

input data set, 4865

intervals, number of, 4856

kriging, ordinary, 4852

nested models, 4871

nugget effect, 4871

ordinary kriging, 4851

OUTDIST= data set, 4851, 4865, 4878, 4880

OUTPAIR= data set, 4851, 4866, 4881

output data sets, 4851, 4865, 4866, 4877-4881

OUTVAR= data set, 4866, 4877

pairwise distances, 4851, 4856, 4867

predicted values, 4852

semivariogram computation, 4876, 4877

semivariogram robust, 4877

semivariogram, empirical, 4856

semivariogram, robust, 4861, 4869, 4877

spatial continuity, 4851

spatial prediction, 4851, 4852

square root difference cloud, 4882

standard errors, 4852

surface plot, 4856

surface trend, 4854

vector preference models

TRANSREG procedure, 4586

viewing graphs

ODS Graphics, 327

VIF,

See variance inflation factors

VIP, 3396

visual fit of the variogram

KRIGE2D procedure, 2045