| dropplot | Dropout Curve and Observation Distribution for Irregular Longitudinal Data | 
| err | Convert Irregular Longitudinal Data to Regular Intervals and Perform Clustering using Excluding Repeated Responses (ERR) method | 
| intlen | Preferred Interval Length for Regularizing Irregular Longitudinal Data | 
| irr | Convert Irregular Longitudinal Data to Regular Intervals and Perform Clustering using Including Repeated Responses (IRR) method | 
| lrrr | Convert Irregular Longitudinal Data to Regular Intervals and Perform Clustering using Linear Regression model for replacing Repeated Responses (LRRS) method | 
| sdata | Simulated Irregular Longitudinal Data | 
| smocc | SMOCC Data |