Depression              Depression data
Depression_column       Supplementary data to be added to Depression
                        data
Depression_row          Supplementary data to be added to Depression
                        data
PTSD                    Post Traumatic Stress Disorder data
PTSD_column             Supplementary data to be added to PTSD data
PTSD_row                Supplementary data to be added to PTSD data
Respiratory             Patient's respiratory staus data
indicator               Indicator matrix
print.vlda              Print a vlda object
vlda                    Visualization of Longitudinal Data Analysis
vlda_add                Supplementary Objects and Variables
vlda_plot               VLDA Plot
