R: Histograms or Density Plots of Multiple Groups

ldahist {MASS} | R Documentation

## 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.

### See Also

`plot.lda`.

[Package MASS version 7.3-18 Index]