[R] best polynomial approximation
Patrizio Frederic
frederic.patrizio at gmail.com
Mon May 17 23:53:29 CEST 2010
Dear Rusers,
I learned today that there exists an interesting topic in numerical
analysis names "best polynomial approximation" (BSA). Given a function
f the BSA of degree k, say pk, is the polynomial such that
pk=arginf sup(fpk)
Although given some regularity condition of f, pk is unique, pk IS NOT
calculated with least square. A quick google tour show a rich field of
research and many algorithms proposed for computing such a task.
I was wondered if some of you knows about some R implementations
(packages) for computing BSA.
Many thanks in advance,
Patrizio
as usual I apologize for my fragmented English

+
 Patrizio Frederic, PhD
 Assistant Professor,
 Department of Economics,
 University of Modena and Reggio Emilia,
 Via Berengario 51,
 41100 Modena, Italy

 tel: +39 059 205 6727
 fax: +39 059 205 6947
 mail: patrizio.frederic at unimore.it
+
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