apply.scope             Function to subset the output table from
                        balance() or diagnose() to covariate balance
                        metrics at a certain distance (e.g. a certain
                        recency) or produce estimates that average over
                        person-time.
balance                 Function to create a balance table for a
                        specified diagnostic. Takes input from
                        lengthen() or omit.history().
catie_sim               Simulated data, loosely based on the Clinical
                        Antipsychotic Trial of Intervention
                        Effectiveness (CATIE) study.
diagnose                Function to loop over the lengthen() and
                        balance() functions.
example_sml             Artifical data set used to illustrate the
                        functionality of confoundr.
lengthen                Function to create a "tidy" dataframe where the
                        key observation is the pairing of exposure and
                        covariate measurement times
makehistory.one         Function to create exposure history for a
                        single time varying exposure.
makehistory.two         Function to create joint exposure history for
                        two distinct time-varying exposures
makeplot                Function to create balance plot for a specified
                        diagnostic. Takes input from balance() or
                        apply.scope() or diagnose().
omit.history            Function to remove irrelevant covariate history
                        from a tidy dataframe used to construct balance
                        tables and plots. Takes input from lengthen(),
                        balance() or diagnose().
toy_long                Artifical data set used to test the
                        functionality of confoundr.
toy_long_dropoutN       Artifical data set used to test the
                        functionality of confoundr.
toy_long_dropoutY       Artifical data set used to test the
                        functionality of confoundr.
toy_wide_censN          Artifical data set used to test the
                        functionality of confoundr.
toy_wide_censY          Artifical data set used to test the
                        functionality of confoundr.
toy_wide_dropoutN       Artifical data set used to test the
                        functionality of confoundr.
toy_wide_dropoutY       Artifical data set used to test the
                        functionality of confoundr.
widen                   Function to transform data from person-time
                        format to person format suitable for lengthen()
