PROBPLOT Statement: CAPABILITY Procedure

Summary of Options

The following tables list the PROBPLOT statement options by function. For complete descriptions, see the section Dictionary of Options.

Distribution Options

Table 5.59 summarizes the options for requesting a specific theoretical distribution.

Table 5.59: Options for Specifying a Theoretical Distribution

Option	Description
BETA(beta-options)	specifies beta probability plot for shape parameters $\alpha$ , $\beta$ specified with mandatory ALPHA= and BETA= beta-options
EXPONENTIAL(exponential-options)	specifies exponential probability plot
GAMMA(gamma-options)	specifies gamma probability plot for shape parameter $\alpha$ specified with mandatory ALPHA= gamma-option
GUMBEL(Gumbel-options)	specifies Gumbel probability plot
LOGNORMAL(lognormal-options)	specifies lognormal probability plot for shape parameter $\sigma$ specified with mandatory SIGMA= lognormal-option
NORMAL(normal-options)	specifies normal probability plot
PARETO(Pareto-options)	specifies generalized Pareto probability plot for shape parameter $\alpha$ specified with mandatory ALPHA= Pareto-option
POWER(power-options)	specifies power function probability plot for shape parameter $\alpha$ specified with mandatory ALPHA= power-option
RAYLEIGH(Rayleigh-options)	specifies Rayleigh probability plot
WEIBULL(Weibull-options)	specifies three-parameter Weibull probability plot for shape parameter c specified with mandatory C= Weibull-option
WEIBULL2(Weibull2-options)	specifies two-parameter Weibull probability plot

Table 5.60 summarizes options that specify distribution parameters and control the display of a distribution reference line. Specify these options in parentheses after the distribution option. For example, the following statements use the NORMAL option to request a normal probability plot with a distribution reference line:

proc capability data=measures;
   probplot length / normal(mu=10 sigma=0.3 color=red);
run;

The MU= and SIGMA= normal-options display a distribution reference line that corresponds to the normal distribution with mean $\mu _0=10$ and standard deviation $\sigma _0=0.3$ , and the COLOR= normal-option specifies the color for the line.

Table 5.60: Distribution Options

Option	Description
Distribution Reference Line Options
COLOR=	specifies color of distribution reference line
L=	specifies line type of distribution reference line
SYMBOL=	specifies plotting character for line printer plots
W=	specifies width of distribution reference line
Beta-Options
ALPHA=	specifies mandatory shape parameter $\alpha$
BETA=	specifies mandatory shape parameter $\beta$
SIGMA=	specifies $\sigma _0$ for distribution reference line
THETA=	specifies $\theta _0$ for distribution reference line
Exponential-Options
SIGMA=	specifies $\sigma _0$ for distribution reference line
THETA=	specifies $\theta _0$ for distribution reference line
Gamma-Options
ALPHA=	specifies mandatory shape parameter $\alpha$
SIGMA=	specifies $\sigma _0$ for distribution reference line
THETA=	specifies $\theta _0$ for distribution reference line
Gumbel-Options
MU=	specifies location parameter $\mu$
SIGMA=	specifies scale parameter $\sigma$
Lognormal-Options
SIGMA=	specifies mandatory shape parameter $\sigma$
SLOPE=	specifies slope of distribution reference line
THETA=	specifies $\theta _0$ for distribution reference line
ZETA=	specifies $\zeta _0$ for distribution reference line (slope is $\exp (\zeta _0)$ )
Normal-Options
MU=	specifies $\mu _0$ for distribution reference line
SIGMA=	specifies $\sigma _0$ for distribution reference line
Pareto-Options
ALPHA=	specifies mandatory shape parameter $\alpha$
SIGMA=	specifies scale parameter $\sigma$
THETA=	specifies threshold parameter $\theta$
Power-Options
ALPHA=	specifies mandatory shape parameter $\alpha$
SIGMA=	specifies scale parameter $\sigma$
THETA=	specifies threshold parameter $\theta$
Rayleigh-Options
SIGMA=	specifies scale parameter $\sigma$
THETA=	specifies threshold parameter $\theta$
Weibull-Options
C=	specifies mandatory shape parameter c
SIGMA=	specifies $\sigma _0$ for distribution reference line
THETA=	specifies $\theta _0$ for distribution reference line
Weibull2-Options
C=	specifies $c_0$ for distribution reference line (slope is $1/c_0$ )
SIGMA=	specifies $\sigma _0$ for distribution reference line (intercept is $\log (\sigma _0)$ )
SLOPE=	specifies slope of distribution reference line
THETA=	specifies known lower threshold $\theta _0$

General Options

Table 5.61 lists options that control the appearance of the plots.

Table 5.61: General PROBPLOT Statement Options

Option	Description
General Plot Layout Options
CONTENTS=	specifies table of contents entry for probability plot grouping
GRID	draws grid lines perpendicular to the percentile axis
HREF=	specifies reference lines perpendicular to the horizontal axis
HREFLABELS=	specifies line labels for HREF= lines
LEGEND=	identifies LEGEND statement
NADJ=	adjusts sample size (N) when computing percentiles
NOFRAME	suppresses frame around plotting area
NOLEGEND	suppresses legend
NOLINELEGEND	suppresses distribution reference line information in legend
NOSPECLEGEND	suppresses specifications information in legend
PCTLMINOR	requests minor tick marks for percentile axis
PCTLORDER=	specifies tick mark labels for percentile axis
RANKADJ=	adjusts ranks when computing percentiles
ROTATE	switches horizontal and vertical axes
SQUARE	displays plot in square format
VREF=	specifies reference lines perpendicular to the vertical axis
VREFLABELS=	specifies line labels for VREF= lines
Graphics Options
ANNOTATE=	specifies annotate data set
CAXIS=	specifies color for axis
CFRAME=	specifies color for frame
CGRID=	specifies color for grid lines
CHREF=	specifies colors for HREF= lines
CTEXT=	specifies color for text
CSTATREF=	specifies colors for STATREF= lines
CVREF=	specifies colors for VREF= lines
DESCRIPTION=	specifies description for plot in graphics catalog
FONT=	specifies software font for text
HAXIS=	specifies AXIS statement for horizontal axis
HEIGHT=	specifies height of text used outside framed areas
HMINOR=	specifies number of horizontal 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
LGRID=	specifies a line type for grid lines
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 minor tick marks
VREFLABPOS=	specifies horizontal position of labels for VREF= lines
WAXIS=	specifies line thickness for axes and frame
WGRID=	specifies line thickness for grid
Options for ODS Graphics Output
ODSFOOTNOTE=	specifies footnote displayed on probability plot
ODSFOOTNOTE2=	specifies secondary footnote displayed on probability plot
ODSTITLE=	specifies title displayed on probability plot
ODSTITLE2=	specifies secondary title displayed on probability plot
Options for Comparative Plots
ANNOKEY	applies annotation to key cell only
CFRAMESIDE=	specifies color for filling frame for row labels
CFRAMETOP=	specifies color for filling frame for column labels
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
NCOLS=	specifies number of columns in comparative probability plot
NROWS=	specifies number of rows in comparative probability plot
OVERLAY	overlays plots for different class levels (ODS Graphics only)
Options to Enhance Line Printer Plots
GRIDCHAR=	specifies character for GRID lines
HREFCHAR=	specifies character for HREF= lines
NOOBSLEGEND	suppresses legend for hidden points
PROBSYMBOL=	specifies character for plotted points
VREFCHAR=	specifies character for VREF= lines