This function computes the tuning constant that yields an MM-regression
estimator with a desired asymptotic efficiency when computed with a
rho function in the corresponding family. The output of this
function can be passed to the functions lmrobdet.control,
scaleM and rho.
Usage
huber(e)
Value
A length-1 vector with the corresponding tuning constant.
Arguments
e
the desired efficiency of the corresponding regression
estimator for Gaussian errors