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안녕하세요 선생님

 

최근 R공부를 잘 못하다가

다시 시작했는데

 

PSM을 다른 방법으로 시도하던 중에

matchit 을 치면

"R code excuetion erroㄱ"라고 뜨면서 

밑에 이렇게 나옵니다.

 

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  '<e2><93>236. doi: <a href="https://doi.org/10.1093/pan/mpl013">10.1093/pan/mpl013</a>

</p>

<p>Ho, D. E., Imai, K., King, G., & Stuart, E. A. (2011). MatchIt: Nonparametric Preprocessing for Parametric Causal Inference. Journal of Statistical Software, 42(8). doi: <a href="https://doi.org/10.18637/jss.v042.i08">10.18637/jss.v042.i08</a>

</p>

 

 

<h3>See Also</h3>

 

<p><code><a href="../../MatchIt/help/summary.matchit">summary.matchit</a></code> for balance assessment after matching. <code><a href="../../MatchIt/help/plot.matchit">plot.matchit</a></code> for plots of covariate balance and propensity score overlap after matching.

</p>

<p><code>vignette("MatchIt")</code> for an introduction to matching with MatchIt; <code>vignette("matching-methods")</code> for descriptions of the variety of matching methods and options available; <code>vignette("assessing-balance")</code> for information on assessing the quality of a matching specification; <code>vignette("estima

 

아무리 찾아봐도 원인을 모르겠습니다.

다른 함수 입력은 문제없는거 같은데 matchit 만 입력하면 이렇게 뜨네요;;

 

가르침 부탁드립니다.