Scatterplot to Compare two Variables

Description

Plot a scatterplot to compare two variables.

Usage

1
compPlot( x, y, lim = NULL, ... )

Arguments

x

values of the first variable (on the X axis).

y

values of the second variable (on the Y axis).

lim

optional vector of two elements specifying the limits of both axes).

...

further arguments are passed to plot.

Author(s)

Arne Henningsen

Examples

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   set.seed( 123 )
   x <- runif( 25 )
   y <- 2 + 3 * x + rnorm( 25 )
   ols <- lm( y ~ x )
   
   compPlot( y, fitted( ols ) )
   compPlot( y, fitted( ols ), lim = c( 0, 10 ) )
   compPlot( y, fitted( ols ), pch = 20 )
   compPlot( y, fitted( ols ), xlab = "observed", ylab = "fitted" )
   compPlot( y, fitted( ols ), log = "xy" )