# Package com.numericalmethod.suanshu.stats.regression.linear.panel

• Interface Summary
Interface Description
PanelData.Transformation
Transforms the data, e.g., taking log.
PanelRegression
Panel (data) analysis is a statistical method, widely used in social science, epidemiology, and econometrics, which deals with two-dimensional (cross sectional/times series) panel data.
• Class Summary
Class Description
FixedEffectsModel
Fits the panel data to this linear model: $y_{it} = \alpha_{i}+X_{it}\mathbf{\beta}+u_{it}$ where $$y_{it}$$ is the dependent variable observed for individual $$i$$ at time $$t$$, $$X_{it}$$ is the time-variant $$1\times K$$ regressor matrix, $$\alpha_{i}$$ is the unobservable time-invariant individual effect and $$u_{it}$$ is the error term.
PanelData
A panel data refers to multi-dimensional data frequently involving measurements over time.