Auto regression

Question

Define the term Auto regression? Explain in brief.

Answer 1

Auto regression is defined as a method of predicting the future time series value by looking at the previous values. Provided a time series X = (x1, x2,….,xn) a future value, x n+1, may be found utilizing the:

x ⁿ⁺¹ = x + j nx n + j n-1x n-1 +……+ e n+1

Here e ⁿ⁺¹ depicts the random error, at time n+1.Additionally, every component in the time series may be viewed as the combination of random error and a linear combination of the previous values.