panel.ellipse: Display a confidence ellipse region in a scatterplot matrix

In mikemeredith/MMmisc: Stuff that Mike wants to have available

Description

Display the estimated bivariate mean and its 50

Usage

panel.ellipse(x, y, col.fill = "pink", level = 0.5, ...)

Arguments

x, y	numeric vectors of the same length
col.fill	numeric or character codes for the fill colour of the ellipse.
level	confidence level, default 0.50
...	further arguments to ellipse.

Details

The function uses the function ellipse in package ellipse; if this is not available, the ellipse is not drawn. No warning is given.

Value

None.

Author(s)

Mike Meredith, 26 Aug 2012

See Also

pairs

Examples

require(graphics)
data(trees)
pairs(trees, upper.panel=panel.ellipse)

mikemeredith/MMmisc documentation built on Nov. 8, 2019, 11:34 p.m.