MASS: ldahist – R documentation

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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.