Prints a grid of balance plots.
# S3 method for balance.plots
plot(x, rows, cols, byrow = TRUE, plot.sequence = seq_along(bplots), ...)
the results of [balance.plot()] when a data frame is specified.
if covar
is a data frame of covariates, the number of
rows in the grid of figures.
if covar
is a data frame of covariates, the number of
columns in the grid of figures.
if TRUE (default), plots will be drawn by rows, otherwise by columns.
the sequence (or subset) of plots to draw.
currently unused.