plot.Mix: 'plot' Method for 'Mix' Objects

In mixComp: Estimation of Order of Mixture Distributions

Description

plot method for Mix objects visualizing the mixture density, with an option of showing the component densities.

Usage

## S3 method for class 'Mix'
plot(
  x,
  ylim,
  xlim = NULL,
  xout = NULL,
  n = 511,
  type = NULL,
  xlab = "x",
  ylab = "f(x)",
  main = attr(obj, "name"),
  lwd = 1.4,
  log = FALSE,
  components = TRUE,
  h0 = FALSE,
  parComp = list(col = NULL, lty = 3, lwd = 1),
  parH0 = list(col = NULL, lty = 3, lwd = 1),
  ...
)

Arguments

x	object of class Mix.
ylim	range of y values to use, if not specified (or containing NA), the function tries to construct reasonable default values.
xlim	range of x values to use, particularly important if xout is not specified. If not specified, the function tries to construct reasonable default values.
xout	numeric or NULL giving the abscissae at which to draw the density.
n	number of points to generate if xout is unspecified (for continuous distributions).
type	character denoting the type of plot, see e.g. lines. Defaults to "l" if the mixture distribution is continuous and to "h" if discrete.
xlab, ylab	labels for the x and y axis with defaults.
main	main title of plot, defaulting to the Mix object name.
lwd	line width for plotting, a positive number.
log	logical flag, if TRUE, probabilities/densities f are plotted as log(f). Only works if components is set to FALSE.
components	logical flag indicating whether the individual mixture components should be plotted, set to TRUE by default.
h0	logical flag indicating whether the line y = 0 should be drawn.
parComp	graphical parameters for drawing the individual components if components is set to TRUE.
parH0	graphical parameters for drawing the line y = 0 if h0 is set to TRUE.
...	further arguments passed to the function for plotting the mixture density.

See Also

Mix for the construction of Mix objects, dMix for the density/mass of a mixture.

Examples

# define 'Mix' object
normLocMix <- Mix("norm", discrete = FALSE, w = c(0.3, 0.4, 0.3), mean = c(10, 13, 17),
                  sd = c(1, 1, 1))
poisMix <- Mix("pois", discrete = TRUE, w = c(0.45, 0.45, 0.1), lambda = c(1, 5, 10))

# plot 'Mix' object
plot(normLocMix)
plot(poisMix)

mixComp documentation built on Feb. 25, 2021, 5:07 p.m.