BOXCHART Statement: SHEWHART Procedure

Summary of Options

The following tables list the BOXCHART statement options by function. For complete descriptions, see Dictionary of Options: SHEWHART Procedure.

Table 17.4: BOXCHART Statement Options

Option	Description
Options for Specifying Control Limits
ALPHA=	requests probability limits for control charts
CONTROLSTAT=	specifies whether control limits are computed for subgroup means or subgroup medians
LIMITN=	specifies either nominal sample size for fixed control limits or varying limits
NOREADLIMITS	computes control limits for each process from the data rather than from a LIMITS= data set (SAS 6.10 and later releases)
READALPHA	reads `_ALPHA_` instead of `_SIGMAS_` from a LIMITS= data set
READINDEX=	reads control limits for each process from a LIMITS= data set
READLIMITS	reads single set of control limits for each process from a LIMITS= data set (SAS 6.09 and earlier releases)
SIGMAS=	specifies width of control limits in terms of multiple k of standard error of plotted statistic
Options for Displaying Control Limits
CINFILL=	specifies color for area inside control limits
CLIMITS=	specifies color of control limits, central line, and related labels
LCLLABEL=	specifies label for lower control limit on box chart
LIMLABSUBCHAR=	specifies a substitution character for labels provided as quoted strings; the character is replaced with the value of the control limit
LLIMITS=	specifies line type for control limits
NDECIMAL=	specifies number of digits to right of decimal place in default labels for control limits and central line in box chart
NOCTL	suppresses display of central line in box chart
NOLCL	suppresses display of lower control limit in box chart
NOLIMITLABEL	suppresses labels for control limits and central line
NOLIMITS	suppresses display of control limits
NOLIMITSFRAME	suppresses default frame around control limit information when multiple sets of control limits are read from LIMITS= data set
NOLIMITSLEGEND	suppresses legend for control limits
NOUCL	suppresses display of upper control limit in box chart
UCLLABEL=	specifies label for upper control limit in box chart
WLIMITS=	specifies width for control limits and central line
XSYMBOL=	specifies label for central line in box chart
Process Mean and Standard Deviation Options
MEDCENTRAL=	specifies method for estimating process mean $\mu$
MU0=	specifies known value of $\mu _{0}$ for process mean $\mu$
RANGES	specifies that estimate of process standard deviation $\sigma$ is to be calculated from subgroup ranges
SIGMA0=	specifies known value $\sigma _{0}$ for process standard deviation $\sigma$
SMETHOD=	specifies method for estimating process standard deviation $\sigma$
TYPE=	identifies whether parameters are estimates or standard values and specifies value of `_TYPE_` in the OUTLIMITS= data set
Options for Controlling Box Appearance
BOXCONNECT=	connects subgroup means, medians, maximum values, minimum values, or quartiles in box-and-whisker plots
BOXSTYLE=	specifies style of box-and-whisker plots
BOXWIDTH=	specifies width of box-and-whisker plots
BOXWIDTHSCALE=	specifies that widths of box-and-whisker plots vary proportionately to subgroup sample size
CBOXES=	specifies color for outlines of box-and-whisker plots
CBOXFILL=	specifies fill color for interior of box-and-whisker plots
IDCOLOR=	specifies outlier symbol color in schematic box-and-whisker plots
IDCTEXT=	specifies text color to label outliers or process variable values
IDFONT=	specifies text font to label outliers or process variable values
IDHEIGHT=	specifies text height to label outliers or process variable values
IDSYMBOL=	specifies outlier symbol in schematic box-and-whisker plots
IDSYMBOLHEIGHT=	specifies outlier symbol height in schematic box-and-whisker plots
LBOXES=	specifies line types for outlines of box-and-whisker plots
NOTCHES	specifies that box-and-whisker plots are to be notched
PCTLDEF=	specifies percentile definition used for box-and-whisker plots
SERIFS	adds serifs to the whiskers of skeletal box-and-whisker plots
WHISKERPERCENTILE=	specifies that whiskers be drawn to percentile values
Options for Plotting and Labeling Points
ALLLABEL=	labels every point on box chart
ALLLABEL2=	labels every point on trend chart
CCONNECT=	specifies color for line segments that connect points on chart
CFRAMELAB=	specifies fill color for frame around labeled points
CLABEL=	specifies color for labels
COUT=	specifies color for portions of line segments that connect points outside control limits
LABELANGLE=	specifies angle at which labels are drawn
LABELFONT=	specifies software font for labels (alias for the TESTFONT= option)
LABELHEIGHT=	specifies height of labels (alias for the TESTHEIGHT= option)
NOCONNECT	suppresses line segments that connect points on chart
NOTRENDCONNECT	suppresses line segments that connect points on trend chart
OUTLABEL=	labels points outside control limits on box chart
SYMBOLLEGEND=	specifies LEGEND statement for levels of symbol-variable
SYMBOLORDER=	specifies order in which symbols are assigned for levels of symbol-variable
TURNALL\|TURNOUT	turns point labels so that they are strung out vertically
Options for Specifying Tests for Special Causes
INDEPENDENTZONES	computes zone widths independently above and below center line
NO3SIGMACHECK	enables tests to be applied with control limits other than $3\sigma$ limits
NOTESTACROSS	suppresses tests across phase boundaries
TESTS=	specifies tests for special causes for the box chart
TEST2RUN=	specifies length of pattern for Test 2
TEST3RUN=	specifies length of pattern for Test 3
TESTACROSS	applies tests across phase boundaries
TESTLABEL=	provides labels for points where test is positive
TESTLABELn=	specifies label for nth test for special causes
TESTNMETHOD=	applies tests to standardized chart statistics
TESTOVERLAP	performs tests on overlapping patterns of points
TESTRESET=	enables tests for special causes to be reset for the box chart
WESTGARD=	requests that Westgard rules be applied to the box chart
ZONELABELS	adds labels A, B, and C to zone lines
ZONES	adds lines to box chart delineating zones A, B, and C
ZONEVALPOS=	specifies position of ZONEVALUES labels
ZONEVALUES	labels zone lines with their values
Options for Displaying Tests for Special Causes
CTESTLABBOX=	specifies color for boxes enclosing labels indicating points where test is positive
CTESTS=	specifies color for labels indicating points where test is positive
CTESTSYMBOL=	specifies color for symbol used to plot points where test is positive
CZONES=	specifies color for lines and labels delineating zones A, B, and C
LTESTS=	specifies type of line connecting points where test is positive
LZONES=	specifies line type for lines delineating zones A, B, and C
TESTFONT=	specifies software font for labels at points where test is positive
TESTHEIGHT=	specifies height of labels at points where test is positive
TESTLABBOX	requests that labels for points where test is positive be positioned so that do not overlap
TESTSYMBOL=	specifies plot symbol for points where test is positive
TESTSYMBOLHT=	specifies symbol height for points where test is positive
WTESTS=	specifies width of line connecting points where test is positive
Axis and Axis Label Options
CAXIS=	specifies color for axis lines and tick marks
CFRAME=	specifies fill colors for frame for plot area
CTEXT=	specifies color for tick mark values and axis labels
DISCRETE	produces horizontal axis for discrete numeric group values
HAXIS=	specifies major tick mark values for horizontal axis
HEIGHT=	specifies height of axis label and axis legend text
HMINOR=	specifies number of minor tick marks between major tick marks on horizontal axis
HOFFSET=	specifies length of offset at both ends of horizontal axis
INTSTART=	specifies first major tick mark value on horizontal axis when a date, time, or datetime format is associated with numeric subgroup variable
NOHLABEL	suppresses label for horizontal axis
NOTICKREP	specifies that only the first occurrence of repeated, adjacent subgroup values is to be labeled on horizontal axis
NOVANGLE	requests vertical axis labels that are strung out vertically
SKIPHLABELS=	specifies thinning factor for tick mark labels on horizontal axis
SPLIT=	specifies splitting character for axis labels
TURNHLABELS	requests horizontal axis labels that are strung out vertically
VAXIS=	specifies major tick mark values for vertical axis of box chart
VAXIS2=	specifies major tick mark values for vertical axis of trend chart
VFORMAT=	specifies format for primary vertical axis tick mark labels
VFORMAT2=	specifies format for secondary vertical axis tick mark labels
VMINOR=	specifies number of minor tick marks between major tick marks on vertical axis
VOFFSET=	specifies length of offset at both ends of vertical axis
VZERO	forces origin to be included in vertical axis for primary chart
VZERO2	forces origin to be included in vertical axis for secondary chart
WAXIS=	specifies width of axis lines
Plot Layout Options
ALLN	plots summary statistics for all subgroups
BILEVEL	creates control charts using half-screens and half-pages
EXCHART	creates control charts for a process variable only when exceptions occur
INTERVAL=	specifies natural time interval between consecutive subgroup positions when time, date, or datetime format is associated with a numeric subgroup variable
MAXPANELS=	specifies maximum number of pages or screens for chart
NMARKERS	requests special markers for points corresponding to sample sizes not equal to nominal sample size for fixed control limits
NOCHART	suppresses creation of box chart
NOFRAME	suppresses frame for plot area
NOLEGEND	suppresses legend for subgroup sample sizes
NPANELPOS=	specifies number of subgroup positions per panel on each chart
REPEAT	repeats last subgroup position on panel as first subgroup position of next panel
TOTPANELS=	specifies number of pages or screens to be used to display chart
TRENDVAR=	specifies list of trend variables
YPCT1=	specifies length of vertical axis on box chart as a percentage of sum of lengths of vertical axes for box and trend charts
ZEROSTD	displays box chart regardless of whether $\hat{\sigma } = 0$
Reference Line Options
CHREF=	specifies color for lines requested by HREF= and HREF2= options
CVREF=	specifies color for lines requested by VREF= and VREF2= options
HREF=	specifies position of reference lines perpendicular to horizontal axis on box chart
HREF2=	specifies position of reference lines perpendicular to horizontal axis on trend chart
HREFDATA=	specifies position of reference lines perpendicular to horizontal axis on box chart
HREF2DATA=	specifies position of reference lines perpendicular to horizontal axis on trend chart
HREFLABELS=	specifies labels for HREF= lines
HREF2LABELS=	specifies labels for HREF2= lines
HREFLABPOS=	specifies position of HREFLABELS= and HREF2LABELS= labels
LHREF=	specifies line type for HREF= and HREF2= lines
LVREF=	specifies line type for VREF= and VREF2= lines
NOBYREF	specifies that reference line information in a data set is to be applied uniformly to charts created for all BY groups
VREF=	specifies position of reference lines perpendicular to vertical axis on box chart
VREF2=	specifies position of reference lines perpendicular to vertical axis on trend chart
VREFLABELS=	specifies labels for VREF= lines
VREF2LABELS=	specifies labels for VREF2= lines
VREFLABPOS=	specifies position of VREFLABELS= and VREF2LABELS= labels
Grid Options
CGRID=	specifies color for grid requested with GRID or ENDGRID option
ENDGRID	adds grid after last plotted point
GRID	adds grid to control chart
LENDGRID=	specifies line type for grid requested with the ENDGRID option
LGRID=	specifies line type for grid requested with the GRID option
WGRID=	specifies width of grid lines
Clipping Options
CCLIP=	specifies color for plot symbol for clipped points
CLIPFACTOR=	determines extent to which extreme points are clipped
CLIPLEGEND=	specifies text for clipping legend
CLIPLEGPOS=	specifies position of clipping legend
CLIPSUBCHAR=	specifies substitution character for CLIPLEGEND= text
CLIPSYMBOL=	specifies plot symbol for clipped points
CLIPSYMBOLHT=	specifies symbol marker height for clipped points
Graphical Enhancement Options
ANNOTATE=	specifies annotate data set that adds features to box chart
ANNOTATE2=	specifies annotate data set that adds features to trend chart
DESCRIPTION=	specifies description of box chart’s GRSEG catalog entry
FONT=	specifies software font for labels and legends on charts
NAME=	specifies name of box chart’s GRSEG catalog entry
PAGENUM=	specifies the form of the label used in pagination
PAGENUMPOS=	specifies the position of the page number requested with the PAGENUM= option
WTREND=	specifies width of line segments connecting points on trend chart

Options for Producing Graphs Using ODS Styles
BLOCKVAR=	specifies variables whose values define colors for filling background of block-variable legend
BOXES=	specifies variables whose values define colors box outlines
BOXFILL=	specifies variables whose values define colors for filling boxes
CFRAMELAB	draws a frame around labeled points
CPHASEBOX	requests boxes enclosing all plotted points for a phase
CPHASEBOXCONNECT	requests lines connecting adjacent enclosing boxes
CPHASEBOXFILL	fills boxes enclosing all plotted points for a phase
CPHASEMEANCONNECT	requests lines connecting phase average value points

Options for ODS Graphics
BLOCKREFTRANSPARENCY=	specifies the wall fill transparency for blocks and phases
BOXTRANSPARENCY=	specifies the box fill transparency for box-and-whisker charts
INFILLTRANSPARENCY=	specifies the control limit infill transparency
NOBLOCKREF	suppresses block and phase reference lines
NOBLOCKREFFILL	suppresses block and phase wall fills
NOBOXFILLLEGEND	suppresses legend for levels of a BOXFILL= variable
NOFILLLEGEND	suppresses legend for levels of a BOXFILL= variable
NOPHASEREF	suppresses block and phase reference lines
NOPHASEREFFILL	suppresses block and phase wall fills
NOREF	suppresses block and phase reference lines
NOREFFILL	suppresses block and phase wall fills
NOTRANSPARENCY	disables transparency in ODS Graphics output
ODSFOOTNOTE=	specifies a graph footnote
ODSFOOTNOTE2=	specifies a secondary graph footnote
ODSLEGENDEXPAND	specifies that legend entries contain all levels observed in the data
ODSTITLE=	specifies a graph title
ODSTITLE2=	specifies a secondary graph title
OUTHIGHURL=	specifies variable whose values are URLs to be associated with outliers above the upper fence on a schematic box chart
OUTLOWURL=	specifies variable whose values are URLs to be associated with outliers below the lower fence on a schematic box chart
OVERLAYURL=	specifies URLs to associate with overlay points
OVERLAY2URL=	specifies URLs to associate with overlay points on secondary chart
PHASEBOXLABELS	draws phase labels as titles along the top of phase boxes
PHASEPOS=	specifies vertical position of phase legend
PHASEREFLEVEL=	associates phase and block reference lines with either innermost or the outermost level
PHASEREFTRANSPARENCY=	specifies the wall fill transparency for blocks and phases
POINTSURL=	specifies variable whose values are URLs to be associated with points representing individual observations
REFFILLTRANSPARENCY=	specifies the wall fill transparency for blocks and phases
SIMULATEQCFONT	draws central line labels using a simulated software font
URL=	specifies a variable whose values are URLs to be associated with subgroups
URL2=	specifies a variable whose values are URLs to be associated with subgroups on secondary chart
WBOXES=	specifies width of box outlines for box-and-whisker charts
Input Data Set Options
MISSBREAK	specifies that observations with missing values are not to be processed
Output Data Set Options
OUTBOX=	creates output data set containing subgroup summary statistics, control limits, and outlier values for box chart
OUTHISTORY=	creates output data set containing subgroup summary statistics
OUTINDEX=	specifies value of `_INDEX_` in the OUTLIMITS= data set
OUTLIMITS=	creates output data set containing control limits
OUTTABLE=	creates output data set containing subgroup summary statistics and control limits
Tabulation Options
Note: specifying (EXCEPTIONS) after a tabulation option creates a table for exceptional points only.
TABLE	creates a basic table of subgroup values, subgroup sample sizes, subgroup summary statistics, and control limits
TABLEALL	is equivalent to the options TABLE, TABLEBOX, TABLECENTRAL, TABLEID, TABLELEGEND, TABLEOUT, and TABLETEST
TABLEBOX	augments basic table with columns for minimum, 25th percentile, median, 75th percentile, and maximum of observations in a subgroup
TABLECENTRAL	augments basic table with values of central lines
TABLEID	augments basic table with columns for ID variables
TABLELEGEND	augments basic table with legend for tests for special causes
TABLEOUTLIM	augments basic table with columns indicating control limits exceeded
TABLETESTS	augments basic table with a column indicating which tests for special causes are positive
Specification Limit Options
CIINDICES	specifies $\alpha$ value and type for computing capability index confidence limits
LSL=	specifies list of lower specification limits
TARGET=	specifies list of target values
USL=	specifies list of upper specification limits
Block Variable Legend Options
BLOCKLABELPOS=	specifies position of label for block-variable legend
BLOCKLABTYPE=	specifies text size of block-variable legend
BLOCKPOS=	specifies vertical position of block-variable legend
BLOCKREP	repeats identical consecutive labels in block-variable legend
CBLOCKLAB=	specifies fill colors for frames enclosing variable labels in block-variable legend
CBLOCKVAR=	specifies one or more variables whose values are colors for filling background of block-variable legend
Phase Options
CPHASEBOX=	specifies color for box enclosing all plotted points for a phase
CPHASEBOXCONNECT=	specifies color for line segments connecting adjacent enclosing boxes
CPHASEBOXFILL=	specifies fill color for box enclosing all plotted points for a phase
CPHASELEG=	specifies text color for phase legend
CPHASEMEANCONNECT=	specifies color for line segments connecting average value points within a phase
NOPHASEFRAME	suppresses default frame for phase legend
OUTPHASE=	specifies value of `_PHASE_` in the OUTHISTORY= data set
PHASEBREAK	disconnects last point in a phase from first point in next phase
PHASELABTYPE=	specifies text size of phase legend
PHASELEGEND	displays phase labels in a legend across top of chart
PHASELIMITS	labels control limits for each phase, provided they are constant within that phase
PHASEMEANSYMBOL=	specifies symbol marker for average of values within a phase
PHASEREF	delineates phases with vertical reference lines
READPHASES=	specifies phases to be read from an input data set
Overlay Options
CCOVERLAY=	specifies colors for primary chart overlay line segments
CCOVERLAY2=	specifies colors for secondary chart overlay line segments
COVERLAY=	specifies colors for primary chart overlay plots
COVERLAY2=	specifies colors for secondary chart overlay plots
COVERLAYCLIP=	specifies color for clipped points on overlays
LOVERLAY=	specifies line types for primary chart overlay line segments
LOVERLAY2=	specifies line types for secondary chart overlay line segments
NOOVERLAYLEGEND	suppresses legend for overlay plots
OVERLAY=	specifies variables to overlay on primary chart
OVERLAY2=	specifies variables to overlay on secondary chart
OVERLAY2HTML=	specifies links to associate with secondary chart overlay points
OVERLAY2ID=	specifies labels for secondary chart overlay points
OVERLAY2SYM=	specifies symbols for secondary chart overlays
OVERLAY2SYMHT=	specifies symbol heights for secondary chart overlays
OVERLAYCLIPSYM=	specifies symbol for clipped points on overlays
OVERLAYCLIPSYMHT=	specifies symbol height for clipped points on overlays
OVERLAYHTML=	specifies links to associate with primary chart overlay points
OVERLAYID=	specifies labels for primary chart overlay points
OVERLAYLEGLAB=	specifies label for overlay legend
OVERLAYSYM=	specifies symbols for primary chart overlays
OVERLAYSYMHT=	specifies symbol heights for primary chart overlays
WOVERLAY=	specifies widths of primary chart overlay line segments
WOVERLAY2=	specifies widths of secondary chart overlay line segments
Options for Interactive Control Charts
HTML=	specifies variable whose values create links to be associated with subgroups on primary chart
HTML2=	specifies variable whose values create links to be associated with subgroups on secondary chart
HTML_LEGEND=	specifies variable whose values create links to be associated with symbols in the symbol legend
OUTHIGHHTML=	specifies variable whose values create links to be associated with outliers above the upper fence on a schematic box chart
OUTLOWHTML=	specifies variable whose values create links to be associated with outliers below the lower fence on a schematic box chart
POINTSHTML=	specifies variable whose values create links to be associated with points representing individual observations
WEBOUT=	creates an OUTTABLE= data set with additional graphics coordinate data
Options for Line Printer Charts
CLIPCHAR=	specifies plot character for clipped points
CONNECTCHAR=	specifies character used to form line segments that connect points on chart
HREFCHAR=	specifies line character for HREF= and HREF2= lines
SYMBOLCHARS=	specifies characters indicating symbol-variable
TESTCHAR=	specifies character for line segments that connect any sequence of points for which a test for special causes is positive
VREFCHAR=	specifies line character for VREF= and VREF2= lines
ZONECHAR=	specifies character for lines that delineate zones for tests for special causes