November 15, 2019 / by / 4 comments

Outlier detection in Air Pollution data

In the post, we applied methods for detecting additive, innovational and level shift outliers to air pollution data.

October 30, 2019 / by / 4 comments

Solving the problem of heteroscedasticity through weighted regression

Although homoscedasticity is often taken for granted in regression analysis, it is common to suppose that the distribution of the disturbance term is different for different observations in the sample.

October 15, 2019 / by / 4 comments

Propensity Score Matching

Introduction