Adds a line to a quantile-quantile plot for two datasets, from stats::qqplot().
(The available stats::qqline() function works mainly for
stats::qqnorm(), with one sample being theoretical quantiles.)
Usage
qqline2(x, y, probs = c(0.25, 0.75), qtype = 7, ...)
Value
Intercept and slope of the line.
Arguments
x
The first sample
y
The second sample.
probs
numeric vector of length two, representing probabilities.
Corresponding quantile pairs define the line drawn.