ldahist: Histograms or Density Plots of Multiple Groups

Description Usage Arguments Side Effects References See Also

View source: R/lda.R

Description

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

Usage

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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 Nov. 1, 2018, 5:06 p.m.