SciELO - Scientific Electronic Library Online

 
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
Home Pagealphabetic serial listing  

Scientia Agricola

Print version ISSN 0103-9016

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 .

        · abstract in Spanish | Portuguese     · text in Spanish