I'm trying to visualize results using Gviz package.
Is it possible to add a straight horizontal line to a track created using DataTrack object?
I'm looking for something like abline(h=n) in base R.
From the DataTrack man page, in the Display Parameters section:
'baseline=NULL': Numeric scalar. Y-axis position of an optional
baseline. This parameter has a special meaning for
mountain-type and polygon-type plots, see the 'Details'
section in 'DataTrack' for more information.
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