SEchart
(Package: SEchart) :
Graphically display states and events in longitudinal data
Produces plots similar to event charts, with the additional option to include a 'state' variable (i.e., a time-varying variable), the values of which are displayed as line segments with different colors. The plots can be used to visualize associations between states and events. Furthermore, useful strategies for the vertical alignment of subjects are included in the function.
providing 
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