USDICE                  Quarterly disposable income and personal
                        consumption expenditures in the United States
USDSEK                  The USD/SEK Exchange Rate
adf_lag_select          Identify Optimal Lag Order Selection for
                        (Augmented) Dickey-Fuller Tests
exCopdab                Dynamic Foreign Policy Behavior (COPDAB)
lag_suggests            Suggested Lags for Your Time Series
money_demand            Quarterly Money Demand in the United States
sadf_test               Simulate a (Augmented) Dickey-Fuller Test to
                        Assess Unit Root in a Time Series
sim_df_mod              Simulate an Individual (Augmented)
                        Dickey-Fuller Model
sim_ts                  Simulate a Time Series
skpss_test              Simulate a KPSS Test to Assess Unit Root in a
                        Time Series
spp_test                Simulate a Phillips-Perron Test to Assess Unit
                        Root in a Time Series
tbills                  Daily maturity rates for U.S. Treasury Bills
ur_summary              Summarize Unit Root Test Simulations
