[R] data smoothing

From: stefano.giampiccolo <stefano.giampiccolo_at_gmail.com>
Date: Wed, 06 Apr 2011 06:32:44 -0700 (PDT)

Good morning,
I have a time serie of clinical data. I know, from the literature, that it must have a linear trend, without seasonal oscillations. Can I use LOESS to have a qualitative confirm? I have only 15 mensurations: how should I choose the smoothing parameter?
Thanks, best reguards
Stefano Giampiccolo

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