CDFPLOT Statement: CAPABILITY Procedure

Summary of Options

The following tables list all options by function. The section Dictionary of Options describes each option in detail.

Distribution Options

You can use the options listed in Table 5.9 to superimpose a fitted theoretical distribution function on your cdf plot.

Table 5.9: Options for Specifying a Theoretical Distribution

Option

Description

BETA(beta-options)

plots beta distribution with threshold parameter $\theta $, scale parameter $\sigma $, and shape parameters $\alpha $ and $\beta $

EXPONENTIAL(exponential-options)

plots exponential distribution with threshold parameter $\theta $ and scale parameter $\sigma $

GAMMA(gamma-options)

plots gamma distribution with threshold parameter $\theta $, scale parameter $\sigma $, and shape parameter $\alpha $

GUMBEL(Gumbel-options)

plots Gumbel distribution with location parameter $\mu $ and scale parameter $\sigma $

IGAUSS(iGauss-options)

plots inverse Gaussian distribution with mean $\mu $ and shape parameter $\lambda $

LOGNORMAL(lognormal-options)

plots lognormal distribution with threshold parameter $\theta $, scale parameter $\zeta $, and shape parameter $\sigma $,

NORMAL(normal-options)

plots normal distribution with mean $\mu $ and standard deviation $\sigma $

PARETO(Pareto-options)

plots generalized Pareto distribution with threshold parameter $\theta $, scale parameter $\sigma $, and shape parameter $\alpha $

POWER(power-options)

plots power function distribution with threshold parameter $\theta $, scale parameter $\sigma $, and shape parameter $\alpha $

RAYLEIGH(Rayleigh-options)

plots Rayleigh distribution with threshold parameter $\theta $ and scale parameter $\sigma $

WEIBULL(Weibull-options)

plots Weibull distribution function with threshold parameter $\theta $, scale parameter $\sigma $, and shape parameter c


Table 5.10 summarizes options that specify distribution parameters and control the display of the theoretical distribution curve. You can specify these options in parentheses after the distribution option. For example, the following statements use the NORMAL option to superimpose a normal distribution:

proc capability;
   cdfplot / normal(mu=10 sigma=0.5 color=red);
run;

The COLOR= option specifies the color for the curve, and the normal-options MU= and SIGMA= specify the parameters $\mu = 10$ and $\sigma = 0.5$ for the distribution function. If you do not specify these parameters, maximum likelihood estimates are computed.

Table 5.10: Distribution Options

Option

Description

Options Used with All Distributions

COLOR=

specifies color of theoretical distribution function

L=

specifies line type of theoretical distribution function

SYMBOL=

specifies character used to plot theoretical distribution function on line printer plots

W=

specifies width of theoretical distribution function

Beta-Options

ALPHA=

specifies first shape parameter $\alpha $ for beta distribution function

BETA=

specifies second shape parameter $\beta $ for beta distribution function

SIGMA=

specifies scale parameter $\sigma $ for beta distribution function

THETA=

specifies lower threshold parameter $\theta $ for beta distribution function

Exponential-Options

SIGMA=

specifies scale parameter $\sigma $ for exponential distribution function

THETA=

specifies threshold parameter $\theta $ for exponential distribution function

Gamma-Options

ALPHA=

specifies shape parameter $\alpha $ for gamma distribution function

ALPHADELTA=

specifies change in successive estimates of $\alpha $ at which the Newton-Raphson approximation of $\hat{\alpha }$ terminates

ALPHAINITIAL=

specifies initial value for $\alpha $ in the Newton-Raphson approximation of $\hat{\alpha }$

MAXITER=

specifies maximum number of iterations in the Newton-Raphson approximation of $\hat{\alpha }$

SIGMA=

specifies scale parameter $\sigma $ for gamma distribution function

THETA=

specifies threshold parameter $\theta $ for gamma distribution function

Gumbel-Options

MU=

specifies location parameter $\mu $ for Gumbel distribution function

SIGMA=

specifies scale parameter $\sigma $ for Gumbel distribution function

IGauss-Options

LAMBDA=

specifies shape parameter $\lambda $ for inverse Gaussian distribution function

MU=

specifies mean $\mu $ for inverse Gaussian distribution function

Lognormal-Options

SIGMA=

specifies shape parameter $\sigma $ for lognormal distribution function

THETA=

specifies threshold parameter $\theta $ for lognormal distribution function

ZETA=

specifies scale parameter $\zeta $ for lognormal distribution function

Normal-Options

MU=

specifies mean $\mu $ for normal distribution function

SIGMA=

specifies standard deviation $\sigma $ for normal distribution function

Pareto-Options

ALPHA=

specifies shape parameter $\alpha $ for generalized Pareto distribution function

SIGMA=

specifies scale parameter $\sigma $ for generalized Pareto distribution function

THETA=

specifies threshold parameter $\theta $ for generalized Pareto distribution function

Power-Options

ALPHA=

specifies shape parameter $\alpha $ for power function distribution

SIGMA=

specifies scale parameter $\sigma $ for power function distribution

THETA=

specifies threshold parameter $\theta $ for power function distribution

Rayleigh-Options

SIGMA=

specifies scale parameter $\sigma $ for Rayleigh distribution function

THETA=

specifies threshold parameter $\theta $ for Rayleigh distribution function

Weibull-Options

C=

specifies shape parameter c for Weibull distribution function

CDELTA=

specifies change in successive estimates of c at which the Newton-Raphson approximation of $\hat{c}$ terminates

CINITIAL=

specifies initial value for c in the Newton-Raphson approximation of $\hat{c}$

MAXITER=

specifies maximum number of iterations in the Newton-Raphson approximation of $\hat{c}$

SIGMA=

specifies scale parameter $\sigma $ for Weibull distribution function

THETA=

specifies threshold parameter $\theta $ for Weibull distribution function


General Options

Table 5.11: General CDFPLOT Statement Options

Option

Description

General Plot Layout Options

CONTENTS=

specifies table of contents entry for cdf plot grouping

HREF=

specifies reference lines perpendicular to the horizontal axis

HREFLABELS=

specifies labels for HREF= lines

NOCDFLEGEND

suppresses legend for superimposed theoretical cdf

NOECDF

suppresses plot of empirical (observed) distribution function

NOFRAME

suppresses frame around plotting area

NOLEGEND

suppresses legend

NOSPECLEGEND

suppresses specifications legend

VREF=

specifies reference lines perpendicular to the vertical axis

VREFLABELS=

specifies labels for VREF= lines

VSCALE=

specifies scale for vertical axis

Graphics Options

ANNOTATE=

specifies annotate data set

CAXIS=

specifies color for axis

CFRAME=

specifies color for frame

CHREF=

specifies colors for HREF= lines

CSTATREF=

specifies colors for STATREF= lines

CTEXT=

specifies color for text

CVREF=

specifies colors for VREF= lines

DESCRIPTION=

specifies description for graphics catalog member

FONT=

specifies text font

HAXIS=

specifies AXIS statement for horizontal axis

HEIGHT=

specifies height of text used outside framed areas

HMINOR=

specifies number of horizontal axis minor tick marks

HREFLABPOS=

specifies position for HREF= line labels

INFONT=

specifies software font for text inside framed areas

INHEIGHT=

specifies height of text inside framed areas

LHREF=

specifies line styles for HREF= lines

LSTATREF=

specifies line styles for STATREF= lines

LVREF=

specifies line styles for VREF= lines

NAME=

specifies name for plot in graphics catalog

NOHLABEL

suppresses label for horizontal axis

NOVLABEL

suppresses label for vertical axis

NOVTICK

suppresses tick marks and tick mark labels for vertical axis

STATREF=

specifies reference lines at values of summary statistics

STATREFLABELS=

specifies labels for STATREF= lines

STATREFSUBCHAR=

specifies substitution character for displaying statistic values in STATREFLABELS= labels

TURNVLABELS

turns and vertically strings out characters in labels for vertical axis

VAXIS=

specifies AXIS statement for vertical axis

VAXISLABEL=

specifies label for vertical axis

VMINOR=

specifies number of vertical axis minor tick marks

VREFLABPOS=

specifies position for VREF= line labels

WAXIS=

specifies line thickness for axes and frame

Options for ODS Graphics Output

ODSFOOTNOTE=

specifies footnote displayed on cdf plot

ODSFOOTNOTE2=

specifies secondary footnote displayed on cdf plot

ODSTITLE=

specifies title displayed on cdf plot

ODSTITLE2=

specifies secondary title displayed on cdf plot

Options for Comparative Plots

ANNOKEY

applies annotation requested in ANNOTATE= data set to key cell only

CFRAMESIDE=

specifies color for filling row label frames

CFRAMETOP=

specifies color for filling column label frames

CPROP=

specifies color for proportion of frequency bar

CTEXTSIDE=

specifies color for row labels

CTEXTTOP=

specifies color for column labels

INTERTILE=

specifies distance between tiles in comparative plot

NCOLS=

specifies number of columns in comparative plot

NROWS=

specifies number of rows in comparative plot

OVERLAY

overlays plots for different class levels (ODS Graphics only)

Options for Line Printer Charts

CDFSYMBOL=

specifies character for plotted points

HREFCHAR=

specifies line character for HREF= lines

VREFCHAR=

specifies line character for VREF= lines