line
Robust Line Fitting
Fit a line robustly as recommended in Exploratory Data Analysis.
- Keywords
- robust, regression
Usage
line(x, y)Arguments
- x, y
- the arguments can be any way of specifying x-y pairs. See
xy.coords.
Details
Cases with missing values are omitted.
Long vectors are not supported.
Value
-
An object of class
"tukeyline".Methods are available for the generic functions coef,
residuals, fitted, and print.
References
Tukey, J. W. (1977). Exploratory Data Analysis, Reading Massachusetts: Addison-Wesley.
See Also
lm.
Examples
library(stats)
require(graphics)
plot(cars)
(z <- line(cars))
abline(coef(z))
## Tukey-Anscombe Plot :
plot(residuals(z) ~ fitted(z), main = deparse(z$call))
Community examples
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