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autocorrelation |
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autocorrelation [¦ȯd·ō‚kär·ə′lā·shən] (electronics) A technique used to detect cyclic activity in a complex signal. (statistics) In a time series, the relationship between values of a variable taken at certain times in the series and values of a variable taken at other, usually earlier times. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| There is little doubt that air pollution levels are spatially autocorrelated within cities, and it is also possible that residual health outcomes would be autocorrelated, either because of imperfect estimates of air pollution levels or because of other unmeasured risk factors not represented in the prediction. On the other hand, the MLE method permits modelers to account for spatially autocorrelated error terms. Cusum charts for monitoring an autocorrelated process. |
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