Connects dots

Check polar_init() for examples.

Usage

polar_connect(data, x1, x2, ...)

Arguments

data

a data.frame contains connections of all events.

x1, x2

the column names (without quote) storing connected events.

...

parameters passing to ggplot2::geom_segment, expect c(x, xend, y, yend) these 4 mapping parameters.

Value

a ggplot object.