mosaic (version 0.4-1)

dotPlot: Dotplots

Description

A high level function and panel function for producing a variant of a histogram called a dotplot.

Usage

dotPlot(x, breaks, ..., panel = panel.dotPlot)
  panel.dotPlot(x, breaks, equal.widths = TRUE,
    groups = NULL,
    nint = if (is.factor(x)) nlevels(x) else round(1.3 * log2(length(x)) + 4),
    pch = if (is.null(groups)) trellis.par.get("dot.symbol")$pch else trellis.par.get("superpose.symbol")$pch,
    col = if (is.null(groups)) trellis.par.get("dot.symbol")$col else trellis.par.get("superpose.symbol")$col,
    lty = trellis.par.get("dot.line")$lty,
    lwd = trellis.par.get("dot.line")$lwd,
    col.line = trellis.par.get("dot.line")$col,
    alpha = trellis.par.get("dot.symbol")$alpha, cex = 1,
    type = "count", ...)

Arguments

x

a vector of values or a formula

nint

the number of intervals to use

panel

a panel function

breaks,equal.widths,groups,pch,col,lty,lwd,col.line,type,alpha

as in histogram

cex

a ratio by which to increase or decrease the dot size

...

additional arguments

Value

• a trellis object

See Also

histogram

Examples

dotPlot( ~ age, data = HELPrct)
dotPlot( ~ age, nint=42, data = HELPrct)
dotPlot( ~ height | voice.part, data = singer, nint = 17,
          endpoints = c(59.5, 76.5), layout = c(2,4), aspect = 1,
          xlab = "Height (inches)")