Plot an oal object

Three diagnostic displays for an oal() fit:

"wamd": the wAMD selection criterion against the exponent \(\delta\) (lambda), one curve per lambda2 value for method = "goal"; the selected point is marked. Requires keep.path = TRUE.
"coef": the original-scale propensity score coefficient paths against \(\delta\) at the selected lambda2, one line per covariate; covariates driven to zero (instruments, noise) are visible as lines absorbed into the axis. Requires keep.path = TRUE.
"balance": a Love plot of covariate balance before/after weighting, via cobalt::love.plot() (dispatched through bal.tab.oal(); cobalt is an Import, so always available).

Usage

# S3 method for class 'oal'
plot(x, type = c("wamd", "coef", "balance"), ...)

x: An oal object.
type: One of "wamd" (default), "coef", "balance".
...: For "balance", further arguments to cobalt::love.plot() (e.g., thresholds = 0.1); otherwise further graphical parameters passed to the base plotting calls.

For "balance", the ggplot object from cobalt::love.plot() (invisibly, after printing); otherwise x, invisibly.