qqline(x, ...) qqline(x, weights = NULL, freq = NULL, ...)
NULL
, or vector of weights the same length as
x
.
Quartiles are calculated for the weighted distribution with probabilities
proportional to
weights
on the values of
x
.
NULL
, or vector the same length as
x
, used to replicate values of
x
.
Quartiles are calculated for the weighted distribution with probabilities
proportional to
freq
(or product of
weights
and
freq
) on the values of
x
.
abline
(which actually draws the line).
This is generally used after a call to
qqnorm
.
qqnorm(car.time) qqline(car.time, col=3)