gcurve {figuRes2}

gcurve

Description

A function to exploit base R's curve function. This returns a data.frame holding x and y values returned from a call to curve, but suppress the plotting of that function

Usage

gcurve(
  expr,
  from = NULL,
  to = NULL,
  n = 101,
  add = FALSE,
  type = "l",
  xname = "x",
  xlab = xname,
  ylab = NULL,
  log = NULL,
  xlim = NULL,
  category = NULL,
  ...
)

Arguments

expr

inherited from curve

from

inherited from curve

to

the range over which the function will be plotted.

n

inherited from curve

add

inherited from curve

type

inherited from curve

xname

inherited from curve

xlab

inherited from curve

ylab

inherited from curve

log

inherited from curve

xlim

inherited from curve

category

option to add a column populated with a factor (by gcurve)

...

inherited from curve

Value

A data.frame is returned. Columns include x, y, and optionally category.

Author(s)

Greg Cicconetti

See Also

graphics::curve

Examples

{
require(ggplot2)
curve(dnorm(x, mean=0, sd=1), from=-4, to = 4, n= 1001)
ggplot(gcurve(expr = dnorm(x, mean=0, sd=1),from=-4, to = 4, n= 1001,
category= "Standard Normal"), aes(x=x, y=y)) + geom_line()
}