
autocorrelation - What does it mean for a time series to be ...
May 17, 2023 · I am familiar with computing the autocorrelation function of a time series as a function of time lag, but I am not sure what it means for a time series to itself be autocorrelated.
What's the deal with autocorrelation? - Cross Validated
So why is autocorrelation a bad (or good) thing? 2.) The solution I've heard for dealing with autocorrelation is to diff the time series. Without trying to read the author's mind, why would …
autocorrelation - Specific lag for Newey-West errors - Cross …
Oct 8, 2024 · I have generated a correlogram of the residuals on STATA to get an idea of the autocorrelation structure, which is shown in the image. But I really do not know how to apply …
Correcting for autocorrelation in simple linear regressions in R
Nov 11, 2015 · very easy to follow and helpful for a first timer like me to test for autocorrelation. I have found autocorrelation occuring in some of my linear regression models, but I haven't got …
autocorrelation - Best practice of testing for serial correlation in ...
Sep 3, 2017 · I want to examine the residuals of a VAR and apply the LM test for serial correlation (autocorrelation) like in (this) blog post by Dave Giles. In my test, I first examine the optimum …
autocorrelation - Portmanteau test results R - Cross Validated
Let me use the term "autocorrelation" as a synonym for "serial correlation". 1) How does one interpret the results of the below demonstration? Most of the interpretation is already in the …
Autocorrelation vs Non-stationary - Cross Validated
Aug 19, 2015 · What is the relationship between autocorrelation and non-stationary? Is it true that non-zero autocorrelation $\\implies$ non-stationary, but not vice versa?
r - Durbin-Watson Test and p-value - Cross Validated
May 17, 2019 · The Durbin-Watson test tests for autocorrelation. However due to the particular nature of autocorrelation (positive and negative autocorrelation) there is a special test statistic: …
What is autocorrelation function? - Cross Validated
Nov 21, 2013 · Can somebody explain autocorrelation function in a time series data? Applying acf to the data, what would be the application?
How to estimate the autocorrelation function? - Cross Validated
May 10, 2017 · Answers to your specific questions: Here are my answers to your specific questions about this estimation problem: 1) It is common for analysts to use these standard …