adf        - Augmented Dickey-Fuller tests for unit roots
cadf       - ADF tests for co-integration
johansen   - Johansen's test for co-integration
prt_coint  - prints results from adf,cadf,johansen

adf_d      - demonstrates adf
cadf_d     - demonstrates cadf 
johansen_d - demonstrates johansen 

detrend    - used by adf,cadf,johansen
ptrend     - used by adf,cadf,johansen
ztcrit     - critical values for adf
rztcrit    - critical values for cadf
c_sja      - critical max eig values for johansen
c_sjt      - critical trace values for johansen
rows.m     - used by adf,cadf,johansen
cols.m     - used by adf,cadf,johansen
trimr.m    - used by adf,cadf,johansen
trimc.m    - used by adf,cadf,johansen
tdiff.m    - used by adf,cadf,johansen