[R] range.bars in stl

[antonio rodríguez]

Hi,

In stlmethods(stats) says:

range.bars  logical indicating if each plot should have a bar at its right 
side which are of equal heights in user coordinates.

I don't understand the meaning of: "which are of equal heights in user 
coordinates"


I'm working with monthly time series, with a clear seasonal cycle, but a not 
so clear trend, is just what I'm looking for. How do I interprate the height 
of such bars?

Thanks

Antonio