bothlines: Add regression lines to a plot

In MethComp: Analysis of Agreement in Method Comparison Studies

Description

Add the regression lines of y on x AND x on y to the plot. Optionally add the line obtained by allowing errors in both variables (Deming regression).

Usage

bothlines(x, y, Dem = FALSE, sdr = 1, col = "black", ...)

Arguments

x	Numeric vector
y	Numeric vector
Dem	Logical. Should the Deming regression line be added too?
sdr	Numeric. The assumed ratio of standard deviations used in the Deming regression.
col	Colour of the lines. Can be a vector of up to 3 elements, one for each line.
...	Additional arguments passed on to abline, which does the actual plotting.

Value

None.

Author(s)

Bendix Carstensen, Steno Diabetes Center, http://BendixCarstensen.com

See Also

abline.

Examples

data( ox )
oxw <- to.wide(ox)
attach( oxw )
plot( CO, pulse )
abline(0,1)
bothlines( CO, pulse, Dem=TRUE, col=rainbow(3), lwd=2 )
plot( CO, pulse,pch=16 )
abline(0,1, col=gray(0.7), lwd=2)
bothlines( CO, pulse, Dem=TRUE, col=c(rep("transparent",2),"black"), lwd=2 )

MethComp documentation built on Jan. 20, 2020, 1:12 a.m.