oneway: Fit One-way Model

In lattice: Trellis Graphics for R

Description

Fits a One-way model to univariate data grouped by a factor, the result often being displayed using rfs

Usage

oneway(formula, data, location=mean, spread=function(x) sqrt(var(x)))

Arguments

formula	formula of the form y ~ x where y is the numeric response and x is the grouping factor
data	data frame in which the model is to be evaluated
location	function or numeric giving the location statistic to be used for centering the observations, e.g. median, 0 (to avoid centering).
spread	function or numeric giving the spread statistic to be used for scaling the observations, e.g. sd, 1 (to avoid scaling).

Value

A list with components

location	vector of locations for each group.
spread	vector of spreads for each group.
fitted.values	vector of locations for each observation.
residuals	residuals (y - fitted.values).
scaled.residuals	residuals scaled by spread for their group

Author(s)

Deepayan Sarkar [e-mail]

See Also

rfs, Lattice

lattice documentation built on May 2, 2019, 6:15 p.m.