transform_by_fun: Transform 2D coordinates by a function(x, y)

In zzwch/crosslink: Visualize the Network of Grouped Nodes

Transform 2D coordinates by a function(x, y)

Description

Transform 2D coordinates by a function(x, y)

Usage

transform_by_fun(
  x = NULL,
  y = NULL,
  fun,
  along = c("x", "y", "xy"),
  xrange.to = NULL,
  xrange.from = NULL,
  yrange.to = NULL,
  yrange.from = NULL,
  ...
)

Arguments

x	a vector of coordinates at x axis
y	a vector of coordinates at y axis
fun	a function taking x and/or y as arguments
along	th independent variables of fun
xrange.to	before transforming, rescale x from xrange.from into the range of xrange.to, set NULL to use range(x)
xrange.from	range of x, set NULL to use range(x)
yrange.to	same with xrange.to, but for y axis
yrange.from	same with xrange.from, but for y axis
...	other parameters passed to fun

Value

a matrix of transformed coordinates

Examples

xy <- data.frame(x = 1,
                 y = 1:100)
xy_tf <- transform_by_fun(xy$x, xy$y, function(x) 0.1*sin(x), along = "y", yrange.to = c(0, 2*pi))
plot(xy)
plot(xy_tf, type = "o")

zzwch/crosslink documentation built on Aug. 27, 2023, 5:57 p.m.