Description Usage Arguments Details Value Author(s) See Also
This function plots the absolute difference in standardized means before and after
weighting. To access more sophisticated graphics for assessing covariate balance,
consider using Noah Greifer's cobalt
package.
1 2 |
x |
an object of class “CBPS” or “npCBPS”, usually, a
result of a call to |
covars |
Indices of the covariates to be plotted (excluding the
intercept). For example, if only the first two covariates from
|
silent |
If set to |
boxplot |
If set to |
... |
Additional arguments to be passed to plot. |
The "Before Weighting" plot gives the balance before weighting, and the "After Weighting" plot gives the balance after weighting.
### @aliases plot.CBPS plot.npCBPS
For binary and multi-valued treatments, plots the absolute difference in standardized means by contrast for all covariates before and after weighting. This quantity for a single covariate and a given pair of treatment conditions is given by [∑ w_i * (T_i == 1) * X_i]/[∑ w_i * (T_i == 1)] - [∑ w_i * (T_i == 0) * X_i]/[∑ w_i * (T_i == 0)]. For continuous treatments, plots the weighted absolute Pearson correlation between the treatment and each covariate. See https://en.wikipedia.org/wiki/Pearson_product-moment_correlation_coefficient#Weighted_correlation_coefficient.
Christian Fong, Marc Ratkovic, and Kosuke Imai.
CBPS, plot
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