Revision Date: 2005-09-19
Problem:
| The out-of-control (OOC) test may fail on the last sample with valid data. When the last xx samples are selected and the last sample in the range has an ID, but no data, and the last sample with data falls outside the control limit, it is not flagged as out-of-control
The data may appears as follows:
| Identifier |
Data |
Out-of-control? |
| 1/1/01 |
10 |
No |
| 1/2/01 |
11 |
No |
| 1/3/01 |
99 |
Yes |
| 1/4/01 |
|
|
In the subgroups to chart, it is pointing to the last n samples (vs. ALL samples). Below the last sample with data is another row that has only an identifier. The problem is that the OOC sample is not flagged as OOC. | |
Solution:
Ref # 676
