| ageperiod_group | Get the cohort index matrix for any age and period groups | 
| apci | Run APC-I model | 
| apci.bar | Make barplot for cohort effect | 
| apci.plot | Plotting age and period raw scores and APC-I model results | 
| apci.plot.heatmap | Plot the heatmap for APC-I model | 
| apci.plot.hexagram | Plot the hexagram heatmap | 
| apci.plot.raw | Plotting age and period patterns | 
| blackmen | Black Men | 
| blackwomen | Black Women | 
| cohortdeviation | Calculate cohort deviation | 
| compute_xcoordinate | Calculate x coordinate value | 
| compute_ycoordinate | Calculate y coordinate value | 
| cpsmen | Labor force participation data for men from 1990 to 1979 in CPS | 
| cpswomen | Labor force participation data for women from 1990 to 1979 in CPS | 
| maineffect | Estimate age effect and period effect | 
| simulation | Simulated Dataset | 
| temp_model | Estimate APC-I model | 
| tests | Local and global F test | 
| whitemen | White Men | 
| whitewomen | White Women | 
| women9017 | women9017 |