Getting Started: Sampling AY 2017-18 California schools and districts | Introduction | Common Core of Data | Package and data set up | Study sample design | Define key input values | Set output sample sizes | Specify covariates of interest | Get unit matches | Assess balance and match quality | 1. Original units vs. target population | 2. Original units vs. replacement candidates | 3. Successful matches | 3.1 Match histogram | 3.2 Successfully computed unit matches per unit group (1...K) | 4. Sub-units from original vs. candidate units