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Simulation results of the estimated nonparametric functions using naive, IPW, and AIPW kernel methods based on 500 replications with sample size n = 500. The left panel is for case 1 (identity link), while the right panel is for case 2 (logit link): —— true θ(z), – · – · the naive kernel estimator, · · · · the IPW kernel estimator, and – – – the AIPW kernel estimator.
