simple.lm {UsingR}

Simplify usage of lm

Description

Simplify usage of lm by avoiding model notation, drawing plot, drawing regression line, drawing confidence intervals.

Usage

simple.lm(x, y, show.residuals=FALSE, show.ci=FALSE, conf.level=0.95,pred=)

Arguments

x

The predictor variable

y

The response variable

show.residuals

set to TRUE to plot residuals

show.ci

set to TRUE to plot confidence intervals

conf.level

if show.ci=TRUE will plot these CI's at this level

pred

values of the x-variable for prediction

Value

returns plots and an instance of lm, as though it were called lm(y ~ x)

Author(s)

John Verzani

See Also

lm

Examples

## on simulated data
x<-1:10
y<-5*x + rnorm(10,0,1)
tmp<-simple.lm(x,y)
summary(tmp)

## predict values
simple.lm(x,y,pred=c(5,6,7))