plotCI.reg {asbio}R Documentation

Plots a simple linear regression along with confidence and prediction intervals.

Description

Plots the fitted line from a simple linear regression (y ~ x) and (if requested) confidence and prediction intervals.

Usage


plotCI.reg(x, y, conf = 0.95, CI = TRUE, PI = TRUE, resid = FALSE, reg.col = 1, 
CI.col = 2, PI.col = 4, reg.lty = 1, CI.lty = 2, PI.lty = 3, reg.lwd = 1, 
CI.lwd = 1, resid.lty = 3, resid.col = 4,...)

Arguments

x

The explanatory variable, a numeric vector.

y

The response variable, a numeric vector

conf

The level of confidence; 1 - P(type I error)

CI

Logical; should the confidence interval be plotted?

PI

Logical; should the prediction interval be plotted?

resid

Logical; should residuals be plotted?

reg.col

Color of the fitted regression line.

CI.col

Color of the confidence interval lines.

PI.col

Color of the prediction interval lines.

reg.lty

Line type for the fitted regression line.

CI.lty

Line type for the confidence interval.

PI.lty

Line type for the confidence interval.

reg.lwd

Line width for the regression line.

CI.lwd

Line widths for the confidence and prediction intervals.

resid.lty

Line width for the regression line.

resid.col

Line color for residual lines.

...

Additional arguments from plot

Value

Returns a plot with a regression line and (if requested) confidence and prediction intervals

Author(s)

Ken Aho

See Also

plot, predict

Examples

y<-c(1,2,1,3,4,2,3,4,3,5,6)
x<-c(2,3,1,4,5,4,5,6,7,6,8)
plotCI.reg(x,y)

[Package asbio version 1.7 Index]