HOTELLING'S T2 CONTROL CHARTS BASED ON ROBUST ESTIMATORS
Under the presence of multivariate outliers, in a Phase I analysis of historical set of data, the T 2 control chart based on the usual sample mean vector and sample variance covariance matrix performs poorly. Several alternative estimators have been proposed. Among them, estimators based on the mini...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universidad Nacional de Colombia
2010-01-01
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| Series: | Dyna |
| Online Access: | http://www.redalyc.org/articulo.oa?id=49615099026 |