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autocorrelation

American  
[aw-toh-kawr-uh-ley-shuhn, -kor-] / ˌɔ toʊˌkɔr əˈleɪ ʃən, -ˌkɒr- /

noun

Statistics.

  1. the correlation of an ordered series of observations with the same series displaced by the same number of terms.

autocorrelation British  
/ ˌɔːtəʊˌkɒrɪˈleɪʃən /

noun

  1. Also called: serial correlation.  the condition occurring when successive items in a series are correlated so that their covariance is not zero and they are not independent

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of autocorrelation

First recorded in 1945–50; auto- 1 + correlation

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.