The OUTBOX= data set saves group summary statistics, decision limits, and outlier values. The following variables can be saved:
the groupvariable
the variable _VAR_
, containing the analysis variable name
the variable _TYPE_
, identifying features of boxandwhisker plots
the variable _VALUE_
, containing values of boxandwhisker plot features
the variable _ID_
, containing labels for outliers
the variable _HTML_
, containing links associated with boxandwhisker plot features
_ID_
is included in the OUTBOX= data set only if one of the keywords SCHEMATICID or SCHEMATICIDFAR is specified with the BOXSTYLE=
option. _HTML_
is present only if the HTML= or HTML2= option is specified.
Each observation in an OUTBOX= data set records the value of a single feature of one group’s boxandwhisker plot, such as
its mean. The _TYPE_
variable identifies the feature whose value is recorded in _VALUE_
. The following table lists valid _TYPE_
variable values:
Table 4.3: Valid _TYPE_ Values in an OUTBOX= Data Set
_TYPE_ Value 
Description 

N 
group size 
ALPHA 
significance level 
LIMITN 
nominal sample size associated with decision limits 
LDLX 
lower decision limit for group mean 
UDLX 
upper decision limit for group mean 
RESPMEAN 
overall response variable mean 
MIN 
group minimum value 
Q1 
group first quartile 
MEDIAN 
group median 
MEAN 
group mean 
Q3 
group third quartile 
MAX 
group maximum value 
LOW 
low outlier value 
HIGH 
high outlier value 
LOWHISKR 
low whisker value, if different from MIN 
HIWHISKR 
high whisker value, if different from MAX 
FARLOW 
low far outlier value 
FARHIGH 
high far outlier value 
Additionally, the following variables, if specified, are included:
blockvariables
symbolvariable
BY variables
ID variables
The OUTLIMITS= data set saves decision limits and decision limit parameters. The following variables can be saved:
Table 4.4: OUTLIMITS= Data Set
Variable 
Description 


significance level 

degrees of freedom for mean square error 

groupvariable specified in the BOXCHART statement 

optional identifier for the decision limits specified with the OUTINDEX= option 

lower decision limit for group means 

number of groups 

sample size associated with the decision limits 

weighted average of group means () 

mean square error 

type (estimate or standard value) of 

upper decision limit for group means 

response specified in the BOXCHART statement 
Notes:
In the unbalanced case, the special missing value V is assigned to the variables _LIMITN_
, _LDLX_
, and _UDLX_
.
Optional BY variables are saved in the OUTLIMITS= data set.
The OUTLIMITS= data set contains one observation for each response specified in the BOXCHART statement. For an example, see Saving Decision Limits.
The OUTSUMMARY= data set saves group summary statistics. The following variables can be saved:
the groupvariable
a group minimum variable named by response suffixed with L
a group firstquartile variable named by response suffixed with 1
a group mean variable named by response suffixed with X
a group median variable named by response suffixed with M
a group thirdquartile variable named by response suffixed with 3
a group maximum variable named by response suffixed with H
a group standard deviation variable named by response suffixed with S
a group sample size variable named by response suffixed with N
Given a response name that contains 32 characters, the procedure first shortens the name to its first 16 characters and its last 15 characters, and then it adds the suffix.
Group summary variables are created for each response specified in the BOXCHART statement. For example, consider the following statements:
proc anom data=Steel; xchart (Width Diameter)*Lot / outsummary=Summary; run;
The data set Summary
contains variables named Lot
, WidthL
, Width1
, WidthX
, WidthM
, Width3
, WidthH
, WidthS
, WidthN
, DiameterL
, Diameter1
, DiameterX
, DiameterM
, Diameter3
, DiameterH
, DiameterS
, and DiameterN
. Additionally, the following variables, if specified, are included:
BY variables
blockvariables
symbolvariable
ID variables
_PHASE_
(if the OUTPHASE= option is specified)
For an example of an OUTSUMMARY= data set, see Saving Summary Statistics for Groups.
The OUTTABLE= data set saves group summary statistics, decision limits, and related information. The following variables can be saved:
Variable 
Description 


significance level 

decision limit exceeded (if any) 
group 
values of the group variable 

lower decision limit for group mean 

nominal sample size associated with the decision limits 

central line 

group maximum 

group median 

group minimum 

group sample size 

group first quartile 

group third quartile 

group mean 

upper decision limit for group mean 

response specified in the BOXCHART statement 
In addition, the following variables, if specified, are included:
BY variables
blockvariables
symbolvariable
ID variables
_PHASE_
(if the READPHASES= option is specified)
Note: The variable _EXLIM_
is a character variable of length 8. The variable _PHASE_
is a character variable of length 48. The variable _VAR_
is a character variable whose length is no greater than 32. All other variables are numeric.
For an example, see Saving Decision Limits.