Index_Q

Q

Q-Q plots,

See quantile plots

Q _n , 280

quantile plots, 253

appearance, 259 “263, 265

axes, percentile scale, 263, 305

axis color , 259

beta distribution, 258, 301

comparative , 262, 263

creating, 298

diagnostics, 299

distribution reference lines, 264, 366

distributions for, 300

exponential distribution, 260, 301

frame, color, 259

gamma distribution, 260, 301

interpreting, 299

legends, suppressing (UNIVARIATE), 366

location parameters, estimation of, 304

lognormal distribution, 261, 302, 369, 373

lognormal distribution, percentiles, 372

nonnormal data, 368

normal distribution, 262, 302, 365

options summarized by function, 255

overview, 253

parameters for distributions, 255, 258, 259, 262 “266

percentiles, estimates of, 305

reference lines, 259, 260, 263

reference lines, options, 259, 261 “263, 265

scale parameters, estimation of, 304

shape parameters, 264, 303

three-parameter Weibull distribution, 302

threshold parameter, 265

threshold parameters, estimation of, 304

tick marks on horizontal axis, 260

tiles for comparative plots, 261

two-parameter Weibull distribution, 303

Weibull distribution, 266, 375

quantile-quantile plots,

See quantile plots

quantiles

defining, 273

empirical distribution function, 273

histograms and, 310

weighted average, 273