[R] registration density profiles : FDA

From: Bellanger Lise <lise.bellanger_at_univ-nantes.fr>
Date: Fri, 15 Jun 2007 17:16:15 +0100


       I would like to use fda library to compare sampled curves that are density profiles. But I encounter some problems to register my data : I know that I must use a registration function to align functions in order to have important features found in each curve occur at roughly the same argument value, prior to do subsequent analysis ( PCA and cluster analysis). But I do not know which function (if there exists one) allows me to synchronize density profiles : could help me please ?

   Thank you by advance

   Best regards

         Lise Bellanger

Lise Bellanger, 
Université de Nantes
Département de Mathématiques, Laboratoire Jean Leray UMR CNRS 6629 
2, Rue de la Houssinière BP 92208 - F-44322 Nantes Cedex 03 
Tél. : (33|0) 2 51 12 59 00 (ou 43) - Fax : (33|0) 2 51 12 59 12 
E-Mail : lise.bellanger_at_univ-nantes.fr
URL : http://www.math.sciences.univ-nantes.fr/

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Received on Fri 15 Jun 2007 - 15:53:06 GMT

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