Research Article
A New Nonparametric Multivariate Control Scheme for Simultaneous Monitoring Changes in Location and Scale
Table 5
OC ARL values of these charts for various
when
and zero-state
under other types of distribution.
| | Type | S-W | S-MD | Proposed | S-W | S-MD | Proposed | S-W | S-MD | Proposed |
| | 50 | | | | | | 1 | 43.1 | 126.1 | 37.5 | 10.2 | 103.2 | 9.4 | 4.5 | 252.1 | 6.9 | | 2 | 13.3 | 64.4 | 8.1 | 4.7 | 5.5 | 2.8 | 3.6 | 10.7 | 2.4 | | 3 | 11.8 | 59 | 7.7 | 4.7 | 5.5 | 2.8 | 3.5 | 10.3 | 2.4 |
| | 100 | | | | | | 1 | 43 | 129.6 | 41.1 | 10.1 | 104.8 | 9.42 | 4.4 | 238.9 | 6.7 | | 2 | 12.7 | 65.4 | 7.7 | 4.8 | 5.8 | 2.7 | 3.4 | 10.5 | 2.4 | | 3 | 12.5 | 54.5 | 7.9 | 4.6 | 5.6 | 2.7 | 3.6 | 10.4 | 2.4 |
| | 200 | | | | | | 1 | 42.9 | 132.9 | 39.1 | 10.7 | 109.7 | 9.2 | 4.7 | 243.3 | 6.9 | | 2 | 13.4 | 61.5 | 8.1 | 4.8 | 5.7 | 2.8 | 3.4 | 10.2 | 2.3 | | 3 | 12 | 58.8 | 8 | 4.7 | 5.7 | 2.8 | 3.5 | 10.6 | 2.4 |
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1: multivariate with 3 distribution; 2: multivariate gamma distribution; 3: multivariate exponential distribution. |