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vol.55 issue2INFLUÊNCIA DE HERBICIDAS APLICADOS EM CONDIÇÕES DE PÓS-EMEGÊNCIA NO CRESCIMENTO DA PLANTA E FIXAÇÃO SIMBIÓTICA DO NITROGÊNIO NA CULTURA DO AMENDOIMON THE ESTIMATION AND PREDICTION IN MIXED LINEAR MODELS author indexsubject indexarticles search
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Scientia Agricola

Print version ISSN 0103-9016On-line version ISSN 1678-992X

Abstract

RINCON, L.F.; LOPEZ, L.A.  and  IEMMA, A.F.. UNA ALTERNATIVA PARA DETECTAR OBSERVACIONES INFLUYENTES EN FUNCIONES DE PRODUCCIÓN UNIVARIADAS. Sci. agric. [online]. 1998, vol.55, n.2, pp.285-290. ISSN 0103-9016.  http://dx.doi.org/10.1590/S0103-90161998000200018.

Models of production functions Yi = (Xi , q) + e, with explanatory variables xj , j=1,..., k and a parameter vector q are used in agricultural and biological areas. In the present work we present an alternative to detect influent observations, when the production function is univariate and the Gauss-Newton method is used to estimate the parameters.

Keywords : production function; influent observation .

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