This function produces a collection of diagnostic plots for ps objects.
# S3 method for ps
boxplot(x, subset = NULL, color = TRUE, time = NULL, ...)
A `ps` object
If multiple `stop.method` rules were used in the `ps()` call, `subset` restricts the plots of a subset of the stopping rules that were employed. This argument expects a subset of the integers from 1 to k, if k `stop.method`s were used.
If `FALSE`, a grayscale figure will be returned.
For use with iptw fits.
Additional arguments that are passed to boxplot function, which may bepassed to the underlying `lattice` package plotting functions.
This function produces lattice-style graphics of diagnostic plots.
Dan McCaffrey, G. Ridgeway, Andrew Morral (2004). "Propensity Score Estimation with Boosted Regression for Evaluating Adolescent Substance Abuse Treatment", *Psychological Methods* 9(4):403-425.
[ps]