All keywords available with the SHEWHART procedure’s INSET and INSET2 statements request a single statistic in an inset, except for the NTESTS, NTESTS2 and DATA= keywords. The NTESTS and NTESTS2 keywords each require a list of indexes specifying the tests for special causes whose counts of positive results are to be displayed:
inset ntests 1 2 3 4; inset ntests2 1 to 4;
For each of the requested tests, the number of positive results for the test is displayed in the inset. So if tests 1 through 4 are requested the results occupy four lines in the inset.
The DATA= keyword specifies a SAS data set containing (label, value) pairs to be displayed in an inset. The data set must
contain the variables _LABEL_
and _VALUE_
. _LABEL_
is a character variable whose values provide labels for inset entries. _VALUE_
can be character or numeric, and provides values displayed in the inset. The label and value from each observation in the
DATA= data set occupy one line in the inset. Figure 17.124 shows an inset containing entries from a DATA= data set.
Table 17.83: Summary Statistics
Keyword |
Description |
---|---|
DATA= |
(label, value) pairs from SAS-data-set |
LCL |
primary chart lower control limit |
MEAN |
estimated or specified process mean |
N |
nominal subgroup size |
NMIN |
minimum subgroup size |
NMAX |
maximum subgroup size |
NOUT |
number of subgroups outside control limits on primary chart |
NLOW |
number of subgroups below lower control limit on primary chart |
NHIGH |
number of subgroups above upper control limit on primary chart |
NTESTS |
number of positive results of tests for special causes on primary chart |
STDDEV |
estimated or specified process standard deviation |
UCL |
primary chart lower control limit |
Table 17.84: Secondary Chart Summary Statistics
Keyword |
Description |
---|---|
LCL2 |
secondary chart lower control limit |
MEAN2 |
mean of subgroup ranges or standard deviations |
NOUT2 |
number of subgroups outside control limits on secondary chart |
NLOW2 |
number of subgroups below lower control limit on secondary chart |
NHIGH2 |
number of subgroups above upper control limit on secondary chart |
NTESTS2 |
number of positive results of tests for special causes on secondary chart |
UCL2 |
secondary chart upper control limit |
Table 17.85: Specification Limits
Keyword |
Description |
---|---|
LSL |
lower specification limit |
USL |
upper specification limit |
TARGET |
target value |
Table 17.86: Capability Indices and Confidence Limits
Keyword |
Description |
---|---|
CIALPHA |
value for computing capability index confidence limits |
CP |
capability index |
CPLCL |
lower confidence limit for |
CPUCL |
upper confidence limit for |
CPK |
capability index |
CPKLCL |
lower confidence limit for |
CPKUCL |
upper confidence limit for |
CPL |
capability index CPL |
CPLLCL |
lower confidence limit for CPL |
CPLUCL |
upper confidence limit for CPL |
CPM |
capability index |
CPMLCL |
lower confidence limit for |
CPMUCL |
upper confidence interval for |
CPU |
capability index CPU |
CPULCL |
lower confidence limit for CPU |
CPUUCL |
upper confidence limit for CPU |
You can use the keywords in Table 17.87 only when producing ODS Graphics output. Greek letters are used in the labels for the statistics requested with the UMU and USIGMA keywords.
Table 17.87: Keywords Specific to ODS Graphics Output
Keyword |
Description |
---|---|
TESTLEGEND |
requests a legend of positive tests for special causes |
UMU |
estimated or specified process mean |
USIGMA |
estimated or specified process standard deviation |