Displaying 1 result from an estimated 1 matches for "boxablinetest".
2007 Jun 21
2
abline plots at wrong abscissae after boxplot
Hi folks,
I'm using R 2.5.0 under ESS under Windows XP. (This also happens using
the Rgui application.)
I'm trying to add lines to a plot originally made with "boxplot", but
the lines appear in the wrong place. Below is a script that
illustrates the problem
# boxablinetest.R - script to show problem with abline on box plot
x <- c( 2, 2, 2, 3, 3, 3, 4, 4, 4)
y <- c( 1, 2, 3, 2, 3, 4, 3, 4, 5)
xymodel <- lm( y~x)
boxplot( y~x)
abline( xymodel) # Wrong abcissae
abline( v = 2.5) # Wrong abcissa...