R: Display marginal distributions

marginal.plot {latticeExtra} | R Documentation

## Display marginal distributions

### Description

Display marginal distributions of several variables, which may be numeric and/or categorical, on one plot.

### Usage

    marginal.plot(x,
                  data = NULL,
                  groups = NULL,
                  reorder = !is.table(x),
                  plot.points = FALSE,
                  ref = TRUE, cut = 0,
                  origin = 0,
                  xlab = NULL, ylab = NULL,
                  type = c("p", if (is.null(groups)) "h"),
                  ...,
                  subset = TRUE,
                  as.table = TRUE,
                  subscripts = TRUE,
                  default.scales = list(
                    relation = "free",
                    abbreviate = TRUE, minlength = 5,
                    rot = 30, cex = 0.75, tick.number = 3,
                    y = list(draw = FALSE)),
                 layout = NULL,
                 lattice.options = list(
                   layout.heights = list(
                     axis.xlab.padding = list(x = 0),
                     xlab.key.padding = list(x = 0))))

### Arguments

`x` | a data frame or table, or a formula of which the first term is a data frame or table. Otherwise coerced with `as.data.frame`.
`data` | an optional data source in which groups and subset may be be evaluated.
`groups` | term, to be evaluated in `data`, that is used as a grouping variable.
`reorder` | whether to reorder factor variables by frequency.
`subset` | data subset expression, evaluated in `data`.
`plot.points, ref, cut` | passed to `panel.densityplot`.
`origin, type` | passed to `panel.dotplot`.
`xlab, ylab, as.table, subscripts` | see `xyplot`.
`default.scales, layout, lattice.options` | see `xyplot`.
`...` | passed to `panel.densityplot` and/or `panel.dotplot`.

### Details

In the case of mixed numeric and categorical variables, the trellis objects from `dotplot()` and `densityplot()` are merged.

### Value

a trellis object.

### Author(s)

Felix Andrews felix@nfrac.org

### See Also

`panel.dotplot`, `panel.densityplot`

### Examples

    enviro <- environmental
    ## make an ordered factor (so it will not be reordered)
    enviro$smell <- cut(enviro$ozone, breaks = c(0, 30, 50, Inf),
        labels = c("ok", "hmmm", "yuck"), ordered = TRUE)
    marginal.plot(enviro)

    ## using groups
    enviro$is.windy <- factor(enviro$wind > 10,
        levels = c(TRUE, FALSE), labels = c("windy", "calm"))
    marginal.plot(enviro[,1:5], data = enviro, groups = is.windy,
        auto.key = list(lines = TRUE))

    ## support for tables
    marginal.plot(Titanic)
    ## table with groups
    marginal.plot(~ Titanic, data = Titanic, groups = Survived,
        type = "b", auto.key = list(title = "Survived?"))

[Package latticeExtra version 0.6-28 Index]