You didn't try very hard.  

Try this, look at it and think about it:

jj <- scale(sample(1:100, 10))  
qqnorm(jj)
abline(0, 1)  

Rather than abline, however, most people, however, would use

qqline(jj)

in which case you don't need the scaling.

V.

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Terry Mu
Sent: Sunday, 3 April 2005 4:00 PM
To: R-Help
Subject: [R] how to draw a 45 degree line on qqnorm() plot?


# I can not draw a 45 degree line on a qqnorm() plot,

jj <- sample(c(1:100), 10)
qqnorm(jj)

abline() don't work.
Thank you.

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