cwhmisc (version 2.1)

lowess.bygroup: Plot data in groups, each with lowess or loess smoothing

Description

data in groups (shown by variable group) are plotted

Usage

lowess.bygroup(x, y, group, lin=FALSE, col = par("col"), bg = NA,
 pch = par("pch"), cex = 1, ...)
loess.bygroup(x, y, group, lin=FALSE, col = par("col"), bg = NA,
 pch = par("pch"), cex = 1, ...)

Arguments

x, y

coordinate vectors of equal length

group

grouping variable, must be a vector of same length as x and y

lin

If TRUE, then lines connecting the points (x,y) are drawn

cex

see par

col

colour of lines

bg

background colour

pch

character to plot

...

see pairs

Value

• The procedure is called for its side effect of producing a plot