[R]: Lp norm estimation
Thomas W Blackwell
tblackw at umich.edu
Thu Dec 18 15:44:20 CET 2003
Allan -
Brian Ripley's implementation of one of the more useful Lp norms is:
library("lqs")
help("lqs")
This is very highly recommended for practical data analysis.
- tom blackwell - u michigan medical school - ann arbor -
On Thu, 18 Dec 2003, allan clark wrote:
> Hi all
>
> Just wondering whether one can undertake Lp norm estimation (a type of
> regression analysis) in R?
>
> i.e.
>
> argmin S ( | y(i) - x(i)b | ^p )
>
> where:
>
> * S is the summation over observation i= 1,2,...,n
> * y is a vector of n observations
> * x is an n by p matrix of explanatory variables
> * b is a p by 1 vector of beta coefficients and
> * p is a constant to be estimated such that p>= 1
>
> Regards
> Allan
>
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