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a horizontal color bar
WColorBarH( data, ..., label = NULL, label.side = "r", label.fontsize = 12, label.pad = 0.005, label.space = 0.05, label.use.data = FALSE )
numeric vector
additional options to WHeatmap
colorbar label
l (for left) or r (for right)
label font size
label padding
when label.use.data, the space between labels
use data to show legend in situ
an object of class WColorBarH
# NOT RUN { WColorBarH(matrix(1:50)) # }
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