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Mar 31, 2014 at 14:28 vote accept caub
Mar 31, 2014 at 13:59 history tweeted twitter.com/#!/StackStats/status/450633451600084992
Mar 31, 2014 at 12:51 comment added Dilip Sarwate A standard example in signal-processing circles is a process consisting of a time-varying deterministic signal plus zero-mean weakly stationary noise. This process is not weakly stationary since the mean function of the process is the signal but it is covariance stationary. The examples in Karl Oskar's answer are of this type, with noise process being strictly stationary instead of only weakly stationary.
Mar 31, 2014 at 12:33 history edited caub CC BY-SA 3.0
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Mar 31, 2014 at 12:27 history edited caub CC BY-SA 3.0
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Mar 31, 2014 at 12:19 answer added KOE timeline score: 3
Mar 31, 2014 at 12:05 history asked caub CC BY-SA 3.0