Compute robust estimates of the covariance between two variables using
the robust tau estimate of univariate scale, as proposed by Maronna and Zamar (2002).
Usage
covrob(t, u)
Arguments
t
a numeric vector containing the data for the fisrt variable.
u
a numeric vector containing the data for the second variable.
Value
Value of the robust covariance.
Details
This function uses the scaleTau2 function from the robustbase package.
References
Maronna, R.A. and Zamar, R.H. (2002)
Robust estimates of location and dispersion of high-dimensional datasets;
Technometrics44(4), 307--317.