Description Usage Arguments Value Author(s) References Examples

Evaluate imbalance in the covariates from the allocation by finding R-squared for a centered regression through the origin.

1 | ```
covimbal(y, xmatc)
``` |

`y` |
vector of 0's and 1's representing allocation |

`xmatc` |
centered X matrix |

Value of R-squared from centered regression

Xiaoshu Zhu xiaoshuzhu@westat.com and Sharon Lohr

Lohr, S. and X. Zhu (2015). Randomized Sequential Individual Assignment in Social Experiments: Evaluating the Design Options Prospectively. Sociological Methods and Research. [Advance online publication: December 27, 2015] doi: 10.1177/0049124115621332.

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