EWMACHART Statement: MACONTROL Procedure

Summary of Options

The following tables list the EWMACHART statement options by function. Options unique to the MACONTROL procedure are listed in Table 9.1, and are described in detail in the section Dictionary of Special Options. Options that are common to both the MACONTROL and SHEWHART procedures are listed in Table 9.2. They are described in detail in Dictionary of Options: SHEWHART Procedure.

Table 9.1: EWMACHART Statement Special Options

Option	Description
Options for Specifying Exponentially Weighted Moving Average Charts
ALPHA=	requests probability limits for control charts
ASYMPTOTIC	requests constant control limits based on asymptotic expressions
LIMITN=	specifies either a fixed nominal sample size (n) for control limits or allows the control limits to vary with subgroup sample size
MU0=	specifies a standard (known) value $\mu _{0}$ for the process mean
NOREADLIMITS	specifies that control limit parameters are not to be read from a LIMITS= data set
READALPHA	reads `_ALPHA_` instead of `_SIGMAS_` from the LIMITS= data set when both variables are available
READINDEX=	reads control limit parameters from the first observation in the LIMITS= data set where the variable `_INDEX_` equals value
READLIMITS	reads control limit parameters from a LIMITS= data set (SAS 6.09 and earlier releases)
RESET	requests that the value of the EWMA be reset after each out-of-control point
SIGMA0=	specifies standard (known) value $\sigma _{0}$ for process standard deviation
SIGMAS=	specifies width of control limits in terms of multiple of standard error of plotted EWMAs
WEIGHT=	specifies weight assigned to the most recent subgroup mean in the computation of the EWMA
Options for Plotting Subgroup Means
CMEANSYMBOL=	specifies color for MEANSYMBOL= symbol
MEANCHAR=	specifies character to plot subgroup means on line printer charts
MEANSYMBOL=	specifies symbol to plot subgroup means in traditional graphics

Table 9.2: EWMACHART Statement General Options

Option	Description
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
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
NOCTL	suppresses display of central line
NOLCL	suppresses display of lower control limit
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 a LIMITS= data set
NOLIMITSLEGEND	suppresses legend for control limits
NOUCL	suppresses display of upper control limit
UCLLABEL=	specifies label for upper control limit
WLIMITS=	specifies width for control limits and central line
XSYMBOL=	specifies label for central line
Process Mean and Standard Deviation Options
SMETHOD=	specifies method for estimating process standard deviation $\sigma$
TYPE=	identifies parameters as estimates or standard values and specifies value of `_TYPE_` in the OUTLIMITS= data set
Options for Plotting and Labeling Points
ALLLABEL=	labels every point on EWMA chart
ALLLABEL2=	labels every point on trend chart
CLABEL=	specifies color for labels
CCONNECT=	specifies color for line segments that connect points on chart
CFRAMELAB=	specifies fill color for frame around labeled points
CNEEDLES=	specifies color for needles that connect points to central line
COUT=	specifies color for portions of line segments that connect points outside control limits
COUTFILL=	specifies color for shading areas between the connected points and control limits outside the 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)
NEEDLES	connects points to central line with vertical needles
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
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
WNEEDLES=	specifies width of needles
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 EWMA 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 means for all subgroups
BILEVEL	creates control charts using half-screens and half-pages
EXCHART	creates control charts for a process only when exceptions occur
INTERVAL=	natural time interval between consecutive subgroup positions when time, date, or datetime format is associated with a numeric subgroup variable
MAXPANELS=	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 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 EWMA chart as a percentage of sum of lengths of vertical axes for EWMA and trend charts
ZEROSTD	displays EWMA 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 EWMA 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 EWMA 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 applies uniformly to charts created for all BY groups
VREF=	specifies position of reference lines perpendicular to vertical axis on EWMA 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=	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 EWMA chart
ANNOTATE2=	specifies annotate data set that adds features to trend chart
DESCRIPTION=	specifies description of EWMA chart’s GRSEG catalog entry
FONT=	specifies software font for labels and legends on charts
NAME=	specifies name of EWMA 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 one or more variables whose values define colors for filling background of block-variable legend
CFRAMELAB	draws a frame around labeled points
COUT	draw portions of line segments that connect points outside control limits in a contrasting color
CSTAROUT	specifies that portions of stars exceeding inner or outer circles are drawn using a different color
OUTFILL	shades areas between control limits and connected points lying outside the limits
STARFILL=	specifies a variable identfying groups of stars filled with different colors
STARS=	specifies a variable identfying groups of stars whose outlines are drawn with different colors

Options for ODS Graphics
BLOCKREFTRANSPARENCY=	specifies the wall fill transparency for blocks and phases
INFILLTRANSPARENCY=	specifies the control limit infill transparency
MARKERS	plots subgroup points with markers
NOBLOCKREF	suppresses block and phase reference lines
NOBLOCKREFFILL	suppresses block and phase wall fills
NOFILLLEGEND	suppresses legend for levels of a STARFILL= 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
NOSTARFILLLEGEND	suppresses legend for levels of a STARFILL= variable
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
OUTFILLTRANSPARENCY=	specifies control limit outfill transparency
OVERLAYURL=	specifies URLs to associate with overlay points
OVERLAY2URL=	specifies URLs to associate with overlay points on secondary chart
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
REFFILLTRANSPARENCY=	specifies the wall fill transparency for blocks and phases
SIMULATEQCFONT	draws central line labels using a simulated software font
STARTRANSPARENCY=	specifies star fill transparency
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
Input Data Set Options
MISSBREAK	specifies that observations with missing values are not to be processed
Output Data Set Options
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 means, subgroup sample sizes, and control limits
TABLEALL	is equivalent to the options TABLE, TABLECENTRAL, TABLEID, TABLELEGEND, TABLEOUTLIM, and TABLETESTS
TABLECENTRAL	augments basic table with values of central lines
TABLEID	augments basic table with columns for ID variables
TABLEOUTLIM	augments basic table with columns indicating control limits exceeded
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
CPHASELEG=	specifies text color 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
PHASEREF	delineates phases with vertical reference lines
READPHASES=	specifies phases to be read from an input data set
Star Options
CSTARCIRCLES=	specifies color for STARCIRCLES= circles
CSTARFILL=	specifies color for filling stars
CSTAROUT=	specifies outline color for stars exceeding inner or outer circles
CSTARS=	specifies color for outlines of stars
LSTARCIRCLES=	specifies line types for STARCIRCLES= circles
LSTARS=	specifies line types for outlines of STARVERTICES= stars
STARBDRADIUS=	specifies radius of outer bound circle for vertices of stars
STARCIRCLES=	specifies reference circles for stars
STARINRADIUS=	specifies inner radius of stars
STARLABEL=	specifies vertices to be labeled
STARLEGEND=	specifies style of legend for star vertices
STARLEGENDLAB=	specifies label for STARLEGEND= legend
STAROUTRADIUS=	specifies outer radius of stars
STARSPECS=	specifies method used to standardize vertex variables
STARSTART=	specifies angle for first vertex
STARTYPE=	specifies graphical style of star
STARVERTICES=	superimposes star at each point on EWMA chart
WSTARCIRCLES=	specifies width of STARCIRCLES= circles
WSTARS=	specifies width of STARVERTICES= stars
Options for Interactive Control Charts
HTML=	specifies a variable whose values create links to be associated with subgroups
HTML2=	specifies variable whose values create links to be associated with subgroups on secondary chart
HTML_LEGEND=	specifies a variable whose values create links to be associated with symbols in the symbol legend
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
VREFCHAR=	specifies line character for VREF= and VREF2= lines