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UCHART Statement

Summary of Options

The following tables list the UCHART statement options by function. For complete descriptions, see Chapter 46, "Dictionary of Options."

Table 41.1: Tabulation Options
TABLEcreates a basic table of subgroup sample sizes, subgroup numbers of nonconformities per unit, and control limits
TABLEALLis equivalent to the options TABLE, TABLECENTRAL, TABLEID, TABLELEGEND, TABLEOUTLIM, and TABLETESTS
TABLECENTRALaugments basic table with values of central lines
TABLEIDaugments basic table with columns for ID variables
TABLELEGENDaugments basic table with legend for tests for special causes
TABLEOUTLIMaugments basic table with columns indicating control limits exceeded
TABLETESTSaugments basic table with a column indicating which tests for special causes are positive

Note that specifying (EXCEPTIONS) after a tabulation option creates a table for exceptional points only.

Table 41.2: Options for Specifying Tests for Special Causes
NO3SIGMACHECKallows tests to be applied with control limits other than 3\sigma limits
TESTS=value-list| customized-pattern-listspecifies tests for special causes
TEST2RUN=nspecifies length of pattern for Test 2
TEST3RUN=nspecifies length of pattern for Test 3
TESTACROSSapplies tests across phase boundaries
TESTLABEL='label'| (variable)|keywordprovides labels for points where test is positive
TESTLABELn='label'specifies label for n th test for special causes
TESTNMETHOD= STANDARDIZEapplies tests to standardized chart statistics
TESTOVERLAPperforms tests on overlapping patterns of points
ZONELABELSadds labels A, B, and C to zone lines
ZONESadds lines delineating zones A, B, and C
ZONEVALPOS=nspecifies position of ZONEVALUES labels
ZONEVALUESlabels zone lines with their values

Table 41.3: Graphical Options for Displaying Tests for Special Causes
CTESTS=color| test-color-listspecifies color for labels indicating points where test is positive
CZONES=colorspecifies color for lines and labels delineating zones A, B, and C
LABELFONT=fontspecifies software font for labels at points where test is positive (alias for the TESTFONT= option)
LABELHEIGHT=valuespecifies height of labels at points where test is positive (alias for the TESTHEIGHT= option)
LTESTS=linetypespecifies type of line connecting points where test is positive
LZONES=linetypespecifies line type for lines delineating zones A, B, and C
TESTFONT=fontspecifies software font for labels at points where test is positive
TESTHEIGHT=valuespecifies height of labels at points where test is positive

Table 41.4: Line Printer Options for Displaying Tests for Special Causes
TESTCHAR='character'specifies character for line segments that connect any sequence of points for which a test for special causes is positive
ZONECHAR='character'specifies character for lines that delineate zones for tests for special causes

Table 41.5: Reference Line Options
CHREF=colorspecifies color for lines requested by the HREF=option
CVREF=colorspecifies color for lines requested by the VREF= option
HREF=values| SAS-data-setspecifies position of reference lines perpendicular to horizontal axis on u chart
HREFCHAR='character'specifies line character for HREF=lines
HREFDATA= SAS-data-setspecifies position of reference lines perpendicular to horizontal axis on u chart
HREFLABELS= 'label1'...'labeln'specifies labels for HREF=lines
HREFLABPOS=nspecifies position of HREFLABELS= labels
LHREF=linetypespecifies line type for HREF=lines
LVREF=linetypespecifies line type for VREF= lines
NOBYREFspecifies that reference line information in a data set is to be applied uniformly to charts created for all BY groups
VREF=values| SAS-data-setspecifies position of reference lines perpendicular to vertical axis
VREFCHAR='character'specifies line character for VREF= lines
VREFLABELS= 'label1'...'labeln'specifies labels for VREF= lines
VREFLABPOS=nspecifies position of VREFLABELS= labels

Table 41.6: Clipping Options
CCLIP=colorspecifies color for plot symbol for clipped points
CLIPCHAR='character'specifies plot character for clipped points
CLIPFACTOR=valuedetermines extent to which extreme points are clipped
CLIPLEGEND='string'specifies text for clipping legend
CLIPLEGPOS=keywordspecifies position of clipping legend
CLIPSUBCHAR= 'character'specifies substitution character for CLIPLEGEND= text
CLIPSYMBOL=symbolspecifies plot symbol for clipped points
CLIPSYMBOLHT=valuespecifies symbol marker height for clipped points

Table 41.7: Axis and Axis Label Options
CAXIS=colorspecifies color for axis lines and tick marks
CFRAME=color| (color-list)specifies fill colors for frame for plot area
CTEXT=colorspecifies color for tick mark values and axis labels
HAXIS=values|AXISnspecifies major tick mark values for horizontal axis
HEIGHT=valuespecifies height of axis label and axis legend text
HMINOR=nspecifies number of minor tick marks between major tick marks on horizontal axis
HOFFSET=valuespecifies length of offset at both ends of horizontal axis
INTSTART=valuespecifies first major tick mark value for numeric horizontal axis
NOHLABELsuppresses label for horizontal axis
NOTICKREPspecifies that only the first occurrence of repeated, adjacent subgroup values is to be labeled on horizontal axis
NOTRUNCsuppresses vertical axis truncation at zero applied by default
NOVANGLErequests vertical axis labels that are strung out vertically
SKIPHLABELS=nspecifies thinning factor for tick mark labels on horizontal axis
TURNHLABELSrequests horizontal axis labels that are strung out vertically
VAXIS=values|AXISnspecifies major tick mark values for vertical axis
VMINOR=nspecifies number of minor tick marks between major tick marks on vertical axis
VOFFSET=valuespecifies length of offset at both ends of vertical axis
VZEROforces origin to be included in vertical axis for primary chart
VZERO2forces origin to be included in vertical axis for secondary chart
WAXIS=nspecifies width of axis lines

Table 41.8: Options for Specifying Control Limits
ALPHA=valuerequests probability limits for control charts
LIMITN=n|VARYINGspecifies either nominal sample size for fixed control limits or varying limits
NOREADLIMITScomputes control limits for each process from the data rather than from a LIMITS= data set (Release 6.10 and later releases)
READALPHAreads the variable _ALPHA_ instead of the variable _SIGMAS_ from a LIMITS= data set
READINDEXES=ALL| 'label1'...'labeln'reads multiple sets of control limits for each process from a LIMITS= data set
READLIMITSreads single set of control limits for each process from a LIMITS= data set (Release 6.09 and earlier releases)
SIGMAS=kspecifies width of control limits in terms of multiple k of standard error of plotted statistic

Table 41.9: Options for Displaying Control Limits
CINFILL=colorspecifies color for area inside control limits
CLIMITS=colorspecifies color of control limits, central line, and related labels
LCLLABEL='label'specifies label for lower control limit
LIMLABSUBCHAR= 'character'specifies a substitution character for labels provided as quoted strings; the character is replaced with the value of the control limit
LLIMITS=linetypespecifies line type for control limits
NDECIMAL=nspecifies number of digits to right of decimal place in default labels for control limits and central line
NOCTLsuppresses display of central line on u chart
NOLCLsuppresses display of lower control limit
NOLIMITLABELsuppresses labels for control limits and central line
NOLIMITSsuppresses display of control limits
NOLIMITSFRAMEsuppresses default frame around control limit information when multiple sets of control limits are read from a LIMITS= data set
NOLIMITSLEGENDsuppresses legend for control limits
NOLIMIT0suppresses display of zero lower control limit for u chart
NOUCLsuppresses display of upper control limit
UCLLABEL='string'specifies label for upper control limit
USYMBOL='string'| keywordspecifies label for central line
WLIMITS=nspecifies width for control limits and central line

Table 41.10: Grid Options
ENDGRIDadds grid after last plotted point
GRIDadds grid to control chart
LENDGRID=linetypespecifies line type for grid requested with the ENDGRID option
LGRID=linetypespecifies line type for grid requested with the GRID option
WGRID=nspecifies width of grid lines

Table 41.11: Options for Plotting and Labeling Points
ALLLABEL=VALUE| (variable)labels every point
CCONNECT=colorspecifies color for line segments that connect points on chart
CFRAMELAB=colorspecifies fill color for frame around labeled points
CNEEDLES=colorspecifies color for needles that connect points to central line
CONNECTCHAR= 'character'specifies character used to form line segments that connect points on chart
COUT=colorspecifies color for portions of line segments that connect points outside control limits
COUTFILL=colorspecifies color for shading areas between the connected points and control limits outside the limits
NEEDLESconnects points to central line with vertical needles
NOCONNECTsuppresses line segments that connect points on chart
OUTLABEL=VALUE| (variable)labels points outside control limits
SYMBOLCHARS= 'characters'specifies characters indicating symbol-variable
SYMBOLLEGEND= NONE|namespecifies LEGEND statement for levels of symbol-variable
SYMBOLORDER= keywordspecifies order in which symbols are assigned for levels of symbol-variable
TURNALL|TURNOUTturns point labels so that they are strung out vertically

Table 41.12: Options for Interactive Control Charts
HTML=(variable)specifies a variable whose values are URLs to be associated with subgroups
HTML_LEGEND= (variable)specifies a variable whose values are URLs to be associated with symbols in the symbol legend
TESTURLS=SAS-data-setassociates URLs with tests for special causes
WEBOUT=SAS-data-setcreates an OUTTABLE= data set with additional graphics coordinate data

Table 41.13: Block Variable Legend Options
BLOCKLABELPOS= keywordspecifies position of label for block-variable legend
BLOCKLABTYPE= value|keywordspecifies text size of block-variable legend
BLOCKPOS=nspecifies vertical position of block-variable legend
BLOCKREPrepeats identical consecutive labels in block-variable legend
CBLOCKLAB=colorspecifies color for filling background in block-variable legend
CBLOCKVAR=variable| (variables)specifies one or more variables whose values are colors for filling background of block-variable legend

Table 41.14: Phase Options
CPHASEBOX=colorspecifies color for box enclosing all plotted points for a phase
CPHASEBOX- CONNECT=colorspecifies color for line segments connecting adjacent enclosing boxes
CPHASEBOXFILL=colorspecifies fill color for box enclosing all plotted points for a phase
CPHASELEG=colorspecifies text color for phase legend
CPHASEMEAN- CONNECT=colorspecifies color for line segments connecting average value points within a phase
NOPHASEFRAMEsuppresses default frame for phase legend
OUTPHASE='string'specifies value of the variable _PHASE_ in the OUTHISTORY= data set
PHASEBREAKdisconnects last point in a phase from first point in next phase
PHASELABTYPE=value| keywordspecifies text size of phase legend
PHASELEGENDdisplays phase labels in a legend across top of chart
PHASELIMITSlabels control limits for each phase, provided they are constant within that phase
PHASEMEANSYMBOL= symbolspecifies symbol marker for average of values within a phase
PHASEREFdelineates phases with vertical reference lines
READPHASES= ALL| 'label1'...'labeln'specifies phases to be read from an input data set

Table 41.15: Standard Value Options
TYPE=keywordidentifies whether parameters are estimates or standard values and specifies value of the variable _TYPE_ in the OUTLIMITS= data set
U0=valuespecifies known average number of nonconformities per unit

Table 41.16: Input Data Set Option
MISSBREAKspecifies that observations with missing values are not to be processed
SUBGROUPN=n| variablespecifies subgroup sample sizes as constant number n or as values of variable in the DATA= data set

Table 41.17: Output Data Set Options
OUTHISTORY= SAS-data-setcreates output data set containing subgroup numbers of nonconformities per unit and subgroup sample sizes
OUTINDEX='string'specifies value of the variable _INDEX_ in the OUTLIMITS= data set
OUTLIMITS= SAS-data-setcreates output data set containing control limits
OUTTABLE= SAS-data-setcreates output data set containing subgroup numbers of nonconformities per unit, subgroup sample sizes, and control limits

Table 41.18: Plot Layout Options
ALLNplots numbers of nonconformities per unit for all subgroups
BILEVELcreates control charts using half-screens and half-pages
EXCHARTcreates control charts for a process variable only when exceptions occur
INTERVAL=keywordspecifies natural time interval between consecutive subgroup positions when time, date, or datetime format is associated with a numeric subgroup variable
MAXPANELS=nspecifies maximum number of pages or screens for chart
NMARKERSrequests special markers for points corresponding to sample sizes not equal to nominal sample size for fixed control limits
NOCHARTsuppresses creation of chart
NOFRAMEsuppresses frame for plot area
NOLEGENDsuppresses legend for subgroup sample sizes
NPANELPOS=nspecifies number of subgroup positions per panel on each chart
REPEATrepeats last subgroup position on panel as first subgroup position of next panel
TOTPANELS=nspecifies number of pages or screens to be used to display chart
ZEROSTDdisplays u chart regardless of whether \hat{\sigma} = 0

Table 41.19: Graphical Enhancement Options
ANNOTATE= SAS-data-setspecifies annotate data set that adds features to chart
DESCRIPTION='string'specifies string that appears in the description field of the PROC GREPLAY master menu
FONT=fontspecifies software font for labels and legends on charts
NAME='string'specifies name that appears in the name field of the PROC GREPLAY master menu
PAGENUM='string'specifies the form of the label used in pagination
PAGENUMPOS= keywordspecifies the position of the page number requested with the PAGENUM= option

Table 41.20: Star Options
CSTARCIRCLES=colorspecifies color for circles specified by the STARCIRCLES= option
CSTARFILL=color| (variable)specifies color for filling stars
CSTAROUT=colorspecifies outline color for stars exceeding inner or outer circles
CSTARS=color| (variable)specifies color for outlines of stars
LSTARCIRCLES= linetypesspecifies line types STARCIRCLES= circles
LSTARS=linetype| (variable)specifies line types for outlines of stars requested with the STARVERTICES= option
STARBDRADIUS=valuespecifies radius of outer bound circle for vertices of stars
STARCIRCLES=value-listspecifies reference circles for stars
STARINRADIUS=valuespecifies inner radius of stars
STARLABEL=keywordspecifies vertices to be labeled
STARLEGEND=keywordspecifies style of legend for star vertices
STARLEGENDLAB= 'label'specifies label for STARLEGEND= legend
STAROUTRADIUS=valuespecifies outer radius of stars
STARSPEC=value| SAS-data-setspecifies method used to standardize vertex variables
STARSTART=valuespecifies angle for first vertex
STARTYPE=keywordspecifies graphical style of star
STARVERTICES= variable|(variables)superimposes star at each point on chart
WSTARCIRCLES=nspecifies width of circles requested by the STARCIRCLES= option
WSTARS=nspecifies width of stars requested by the STARVERTICES= option

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Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.