mean_est function

The Inverse Probability Weighted Estimator of the Marginal Mean Given a Specific Treatment Regime

The Inverse Probability Weighted Estimator of the Marginal Mean Given a Specific Treatment Regime

Estimate the marginal mean of the response when the entire population follows a treatment regime. This function implements the inverse probability weighted estimator proposed by Baqun Zhang et. al..

This function supports the mestimate function.

mean_est(beta, x, a, y, prob)

Arguments

  • beta: a vector indexing the treatment regime. It indexes a linear treatment regime:
d(x)=I{β0+β1x1+...+βkxk>0}.d(x)=Iβ0+β1x1+...+βkxk>0. d(x)= I\{\beta_0 + \beta_1 x_1 + ... + \beta_k x_k > 0\}.d(x)= I{\beta_0 + \beta_1*x_1 + ... + \beta_k*x_k > 0}.
  • x: a matrix of observed covariates from the sample. Notice that we assumed the class of treatment regimes is linear. This is important that columns in x matches with beta.
  • a: a vector of 0s and 1s, the observed treatments from a sample
  • y: a vector, the observed responses from a sample
  • prob: a vector, the propensity scores of getting treatment 1 in the samples

References

Rdpack::insert_ref(key="zhang2012robust",package="quantoptr")

  • Maintainer: Yu Zhou
  • License: GPL (>= 2)
  • Last published: 2018-02-05

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