Helper function for calculating guide lines and labels in heatmap

Helper function for calculating guide lines and labels in heatmap

Usage

.heatmap_lines(
  loci,
  nbins,
  bin_size,
  upstream,
  downstream,
  mode,
  expand = TRUE
)

Arguments

loci

Number of loci (rows)

nbins

Number of bins (columns)

bin_size

Bin size. Length of bin in base pairs. The lower, the higher the resolution.

upstream

Number of base pairs to include upstream of loci.

downstream

Number of base pairs to include downstream of loci.

mode

How to handle differences in lengths across loci:

stretch: Anchor each locus on both sides.

start: Anchor all loci on start.

end: Anchor all loci on end.

center: Center all loci.

expand

Whether to apply padding to the ticks. Otherwise a strange box shows on heatmap.

Value

A list of ggproto objects to be plotted.