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Data Manipulation
Collapse a Data Set
Combining Datasets
Vertical Combination
Horizontal Combination (Deterministic)
Creating Dummy Variables
Determine the Observation Level of a Data Set
Reshaping Data
Reshape Panel Data from Wide to Long
Reshape Panel Data from Long to Wide
Rowwise Calculations
Geo-Spatial
Choropleths
Geocoding
Merging Shape Files
Spatial Joins
Machine Learning
Artificial Neural Network
Boosted Regression Trees
Causal Forest
Decision Trees
Penalized Regression
Random Forest
Model Estimation
Ordinary Least Squares
Simple Linear Regression
Interaction Terms and Polynomials
Fixed Effects in Linear Regression
Generalised Least Squares
Heckman Correction Model
Logit Model
McFadden's Choice Model (Alternative-Specific Conditional Logit)
Probit Model
Multilevel Models
Linear Mixed-Effects Regression
Random/Mixed Effects in Linear Regression
Research Design
Instrumental Variables
Regression Discontinuity Design
2x2 Difference in Difference
Statistical Inference
Linear Hypothesis Tests
Nonstandard Errors
Presentation
Figures
Scatterplots
Styling Scatterplots
Bar Graphs
Density Plots
Faceted Graphs
Heatmap Colored Correlation Matrix
Histograms
Line Graph with Labels at the Beginning or End of Lines
Line Graphs
Marginal Effects Plots for Interactions with Continuous Variables
Scatterplot by Group on Shared Axes
Styling Line Graphs
Formatting Graph Legends
Tables
Balance Tables
Regression Tables
Summary Statistics Tables
Time Series
AR Models
ARCH Model
ARMA Models
GARCH Model
Granger Causality
Creating Time Series Dataset
Other
Create a Conda Package (Python)
Get a List of Files
Import a Foreign Data File
Desired Nonexistent Pages
Contributing
Home
Model Estimation
Ordinary Least Squares
Ordinary Least Squares
Table of contents
Simple Linear Regression
Interaction Terms and Polynomials
Fixed Effects in Linear Regression