Kernel density estimates of the propensity scores by treatment assignment in
order to check whether the estimated propensity scores are well balanced.
If object
is of class grouped_psweight
, then density plots are faceted by
the group number. If object
is of class grouped_psweight_mi
, then propensity
scores from the imputations are pooled.
plot_ps(object, ...) # S3 method for grouped_psweight_mi plot_ps(object, method = "iptw_att", logit = FALSE)
object | An object of the appropriate class. |
---|---|
method | A character vector of length one indicating the propensity score method used to generate the weights. |
logit | Logical. If |
A ggplot2::ggplot
object.