ggellipse: ggellipse

In jrboyd/seqsetvis: Set Based Visualizations for Next-Gen Sequencing Data

ggellipse

Description

returns a ggplot with ellipses drawn using specified parameters used by ssvFeatureVenn and ssvFeatureEuler

Usage

ggellipse(
  xcentres,
  ycentres,
  r,
  r2 = r,
  phi = rep(0, length(xcentres)),
  circle_colors = NULL,
  group_names = LETTERS[seq_along(xcentres)],
  line_alpha = 1,
  fill_alpha = 0.3,
  line_width = 2,
  n_points = 200
)

Arguments

xcentres	numeric x-coord of centers of ellipses
ycentres	numeric y-coord of centers of ellipses, must have same length as xcentres
r	numeric radius1 of ellipse, must have length of 1 or match length of xcentres
r2	numeric radius2 of ellipse, must have length of 1 or match length of xcentres. same as r by default.
phi	numeric phi of ellipse, must have length of 1 or match length of xcentres. 0 by default.
circle_colors	character of rcolors or hex colors or NULL. if null safeBrew of Dark2 is used
group_names	character/factor names of color/fill groups. capital letters by default.
line_alpha	numeric value from 0 to 1. alpha of lines, 1 by default
fill_alpha	numeric value from 0 to 1. alpha of fill, .3 by default.
line_width	numeric > 0. passed to size. 2 by default
n_points	integer > 1. number of points to approximate circle with. 200 by default

Details

uses eulerr's non-exported ellipse drawing coordinate function

Value

a ggplot containing ellipses

Examples

ggellipse(xcentres = c(1, 1, 2),
    ycentres = c(2, 1, 1),
    r = c(1, 2, 1))
ggellipse(xcentres = c(1, 1, 2),
    ycentres = c(2, 1, 1),
    r = c(1, 2, 1),
    fill_alpha = 0,
    group_names = paste("set", 1:3))
ggellipse(xcentres = c(1, 1, 2),
    ycentres = c(2, 1, 1),
    r = c(1, 2, 1),
    circle_colors = c("red", "orange", "yellow"),
    line_alpha = 0,
    group_names = paste("set", 1:3))

jrboyd/seqsetvis documentation built on Dec. 10, 2024, 11:23 a.m.