CR2: Compute Cluster Robust Standard Errors with Degrees of Freedom Adjustments

An R package to estimate different types of cluster robust standard errors (CR0, CR1, CR2) with degrees of freedom adjustments. Standard errors are computed based on Liang and Zeger (1986) and Bell and McCaffrey (2002). Functions used in Huang and Li (2022), Huang, Wiedermann, and Zhang (2022), and Huang, Zhang, and Li (2022).