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A Deep-Dive into Generalized Least Squares Estimation
Nov. 1, 2022, 5:03 a.m. | Sachin Date
Towards Data Science - Medium towardsdatascience.com
A detailed look at how to fit a robust GLS model on heteroskedastic, auto-correlated data sets
Generalized Least Squares (GLS) estimation is a generalization of the Ordinary Least Squares (OLS) estimation technique. GLS is especially suitable for fitting linear models on data sets that exhibit heteroskedasticity (i.e., non-constant variance) and/or auto-correlation. Real world data sets often exhibit these characteristics making GLS a very useful alternative to OLS estimation.
Motivation …
correlation deep-dives heteroskedasticity least linear regression squares
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