ldahist: Histograms or Density Plots of Multiple Groups

In MASS: Support Functions and Datasets for Venables and Ripley's MASS

Histograms or Density Plots of Multiple Groups

Description

Plot histograms or density plots of data on a single Fisher linear discriminant.

Usage

ldahist(data, g, nbins = 25, h, x0 = - h/1000, breaks,
        xlim = range(breaks), ymax = 0, width,
        type = c("histogram", "density", "both"),
        sep = (type != "density"),
        col = 5, xlab = deparse(substitute(data)), bty = "n", ...)

Arguments

data	vector of data. Missing values (NAs) are allowed and omitted.
g	factor or vector giving groups, of the same length as data.
nbins	Suggested number of bins to cover the whole range of the data.
h	The bin width (takes precedence over nbins).
x0	Shift for the bins - the breaks are at x0 + h * (..., -1, 0, 1, ...)
breaks	The set of breakpoints to be used. (Usually omitted, takes precedence over h and nbins).
xlim	The limits for the x-axis.
ymax	The upper limit for the y-axis.
width	Bandwidth for density estimates. If missing, the Sheather-Jones selector is used for each group separately.
type	Type of plot.
sep	Whether there is a separate plot for each group, or one combined plot.
col	The colour number for the bar fill.
xlab	label for the plot x-axis. By default, this will be the name of data.
bty	The box type for the plot - defaults to none.
...	additional arguments to polygon.

Side Effects

Histogram and/or density plots are plotted on the current device.

References

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

See Also

plot.lda.

MASS documentation built on June 22, 2024, 10:42 a.m.