x
object of class dataframe with loh difference
calculations and column names "window_start", "window_stop", "chromosome",
"sample", and "loh_diff"
dummyData
object of class dataframe with column names "chromosome",
"start", "end" specifying chromosome boundaries
colourScheme
Character vector specifying the colour scale to use from
the viridis package. One of "viridis", "magma", "plasma", or "inferno".