ldahist - R Documentation

`ldahist` 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 (`NA`s) 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.

ldahist Histograms or Density Plots of Multiple Groups