circlize {circlize} | R Documentation |
Convert to polar coordinate system
circlize(
x, y,
sector.index = get.current.sector.index(),
track.index = get.current.track.index())
x |
Data points on x-axis. The value can also be a two-column matrix/data frame if you put x and y data points into one variable. |
y |
Data points on y-axis. |
sector.index |
Index for the sector to convert the coordinates. |
track.index |
Index for the track to convert the coordinates. |
This is the core function in the package. It transform data points from data coordinate system (in a specific cell) to the polar coordinate system.
A matrix with two columns (theta
and rou
). rou
is measured in degree.
pdf(NULL)
sectors = c("a", "b")
circos.initialize(sectors, xlim = c(0, 1))
circos.track(ylim = c(0, 1))
# x = 0.5, y = 0.5 in sector a and track 1
circlize(0.5, 0.5, sector.index = "a", track.index = 1)
circos.clear()
dev.off()