quan
smallest squared residuals.
Here,
quan
is an integer between (roughly)
n/2
and
n
.
Methods
);
method functions can be written to handle specific classes of data.
Classes which already have methods for
this function include:
formula
ltsreg(...)
"lts"
representing a robust fit of a linear model.
See
lts.object
for details.
Burns, P. J. (1992).
A Genetic Algorithm for Robust Regression Estimation.
(StatSci Technical Note).
Rousseeuw, P. J. (1984).
Least median of squares regression.
Journal of the American Statistical Association,
79, 871-881.
Rousseeuw, P. J. and Leroy, A. M. (1987).
Robust Regression and Outlier Detection.
New York: Wiley.
ltsreg(stack.x, stack.loss) ltsreg(ozone~wind+radiation+temperature, data=air)