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|Title: ||Modelling Animal Growth in Random Environments: An Application Using Nonparametric Estimation|
|Authors: ||Filipe, Patrícia A.|
Braumann, Carlos A.
Brites, Nuno M.
Roquete, Carlos J.
|Keywords: ||cattle weight|
stochastic differential equations
|Issue Date: ||Oct-2010|
|Publisher: ||John Wiley & Sons|
|Abstract: ||We study a stochastic differential
equation growth model to describe individual growth in
random environments. In particular, in this paper, we discuss the
estimation of the drift and the diffusion coefficients using
nonparametric methods for the case of non-equidistant data for several trajectories. We illustrate the methodology by using
bovine growth data. Our goal is to
assess: a) if the parametric models (with specific functional
forms for the drift and the diffusion coefficients) previously used by us to describe the
evolution of bovine weight were adequate choices; b)
whether some alternative specific parameterized functional forms of
these coefficients might be suggested for further parametric
analysis of this data.|
|Appears in Collections:||MAT - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica|
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