Description Usage Arguments Value References Examples

This function calculates `K_M_var_factor`

, a numeric vector. Each entry in
this vector is a function of the number of times each unit is matched to, aka
*K_M(i)* (corresponding to `Kiw`

, where *M* corresponds to `M_matches`

. The calculation
in this function comes from Theorem 7, page 251 of Abadie and Imbens (2006)
Econometrica. The `K_M_var_factor`

is an important component in the variance
estimation, created in the function `estVarAI2006`

in
`estimateTau`

.

1 | ```
calcKMVarFactor(Kiw, M_matches)
``` |

`Kiw` |
A vector of times each unit is matched to |

`M_matches` |
Number of matches per unit for imputing potential outcomes, as in Abadie and Imbens (2006). |

A numeric vector.

This function is exported for use in other packages.

Abadie, A., & Imbens, G. W. (2006). Large sample properties of matching estimators for average treatment effects. econometrica, 74(1), 235-267. https://doi.org/10.1111/j.1468-0262.2006.00655.x

1 | ```
calcKMVarFactor(Kiw = 2, M_matches = 4)
``` |

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.