# RATest: An R package for Randomization Tests with an application to testing the continuity of the baseline covariates in RDD using Approximate Permutation Tests

#### Abstract

This paper introduces the RATest package in R, a collection of randomization tests. This package implements the approximate permutation test proposed by Canay and Kamat (2017) for testing the null hypothesis of continuity of the distribution of the baseline covariates at the cutoff in the Regression Discontinuity Design (RDD). We revisit the construction of permutation tests in general, and their properties under the approximate group invariance in particular. We illustrate these ideas and the proposed package in the context of the RDD of Lee (2008).

### Cite this paper

@inproceedings{OlivaresGonzlez2017RATestAR, title={RATest: An R package for Randomization Tests with an application to testing the continuity of the baseline covariates in RDD using Approximate Permutation Tests}, author={Mauricio Olivares-Gonz{\'a}lez}, year={2017} }