[R] barplot with chopped bars

[Jim Lemon]

On 09/23/2009 07:14 AM, Lars Skjærven wrote:
> Dear R users,
> I want to make a barplot with bars that can be non-continuous. An example
> will be the presence and absence of some events over time, e.g. a bunch of
> people that are either in the office or not in the office, for some period
> of time. I want to visualize this in a bar plot like this:
>
> Person 1: *********             ********     *******
> Person 2:       *********     *****   **********
> Person 3:   **************     ***********
>
> Any tips on how this can be done?
>
>    
Hi Lars,
This looks a bit like a Gantt chart. There are functions to produce 
these in the plotrix and plan packages.

Jim