Index_S

S

saving correlations

example, 52

scale estimates

robust, 207

scale parameters, 304

probability plots, 304

quantile plots, 304

shape parameters, 303

probability plots, 251

quantile plots, 264

Shapiro-Wilk statistic, 293

Shapiro-Wilk test, 206

sign test, 275, 276

paired data and, 332

signed rank statistic, computing, 277

simple kappa coefficient, 127, 129

singularity of variables , 8

smoothing data distribution,

See kernel density estimation

S _n , 280

Somers D statistics, 108, 112

Spearman correlation statistics, 8

probability values, 16

Spearman partial correlation, 3, 13

Spearman rank-order correlation, 3, 16, 34

Spearman rank correlation coefficient, 108, 114

standard deviation, 8

stem-and-leaf plots, 207, 282

stratified analysis

FREQ procedure, 65, 84

stratified table

example, 174

Stuart s tau- c statistic, 108, 112

Student s t test, 275, 276

summary statistics

insets of, 230

sums of squares and crossproducts, 8