indexplot: Index Plots
In RcmdrMisc: R Commander Miscellaneous Functions

indexplot

R Documentation

Index Plots

Description

Index plots with point identification.

Usage

indexplot(x, groups, labels = seq_along(x), id.method = "y", type = "h", 
    id.n = 0, ylab, legend="topright", title, col=palette(), ...)

Arguments

`x`	a numeric variable, a matrix whose columns are numeric variables, or a numeric data frame; if `x` is a matrix or data frame, plots vertically aligned index plots for the columns.
`labels`	point labels; if `x` is a data frame, defaults to the row names of `x`, otherwise to the case index.
`groups`	an optional grouping variable, typically a factor (or character or logical variable).
`id.method`	method for identifying points; see `showLabels`.
`type`	to be passed to `plot`.
`id.n`	number of points to identify; see `showLabels`.
`ylab`	label for vertical axis; if missing, will be constructed from `x`; for a data frame, defaults to the column names.
`legend`	keyword (see `link`[grapics]legend) giving location of the legend if `groups` are specified; if `legend=FALSE`, the legend is suppressed.
`title`	title for the legend; may normally be omitted.
`col`	vector of colors for the `groups`.
`...`	to be passed to `plot`.

Value

Returns labelled indices of identified points or (invisibly) NULL if no points are identified or if there are multiple variables with some missing data.

Author(s)

John Fox jfox@mcmaster.ca

Examples

if (require("car")){
    with(Prestige, indexplot(income, id.n=2, labels=rownames(Prestige)))
    indexplot(Prestige[, c("income", "education", "prestige")], 
        groups = Prestige$type, id.n=2)
}

RcmdrMisc documentation built on Sept. 27, 2023, 1:06 a.m.