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dc.contributor.authorHuete Morales, María Dolores es_ES
dc.contributor.authorMarmolejo, Juan A.es_ES
dc.date.accessioned2016-05-25T08:54:04Z
dc.date.available2016-05-25T08:54:04Z
dc.date.issued2016
dc.identifier.citationHuete, M.A.; Marmolejo, J.A. Modelling the number of olive groves in Spanish municipalities. Spanish Journal of Agricultural Research, 14(1): e0201 (2016). [http://hdl.handle.net/10481/41412]es_ES
dc.identifier.issn2171-9292
dc.identifier.urihttp://hdl.handle.net/10481/41412
dc.description.abstractThe univariate generalized Waring distribution (UGWD) is presented as a new model to describe the goodness of fit, applicable in the context of agriculture. In this paper, it was used to model the number of olive groves recorded in Spain in the 8,091 municipalities recorded in the 2009 Agricultural Census, according to which the production of oil olives accounted for 94% of total output, while that of table olives represented 6% (with an average of 44.84 and 4.06 holdings per Spanish municipality, respectively). UGWD is suitable for fitting this type of discrete data, with strong left-sided asymmetry. This novel use of UGWD can provide the foundation for future research in agriculture, with the advantage over other discrete distributions that enables the analyst to split the variance. After defining the distribution, we analysed various methods for fitting the parameters associated with it, namely estimation by maximum likelihood, estimation by the method of moments and a variant of the latter, estimation by the method of frequencies and moments. For oil olives, the chi-square goodness of fit test gives p-values of 0.9992, 0.9967 and 0.9977, respectively. However, a poor fit was obtained for the table olive distribution. Finally, the variance was split, following Irwin, into three components related to random factors, external factors and internal differences. For the distribution of the number of olive grove holdings, this splitting showed that random and external factors only account about 0.22% and 0.05%. Therefore, internal differences within municipalities play an important role in determining total variability.es_ES
dc.description.sponsorshipThis research is financed by Vice-Rector’s Office for Political Science and Research-University of Granada, through the project “Social-Labour Statistics and Demography” (30.BB.11.1101) at the Faculty of Labour Sciences.es_ES
dc.language.isoenges_ES
dc.publisherInstituto Nacional de Investigación y Tecnología Agraria y Alimentariaes_ES
dc.subjectTable olivees_ES
dc.subjectOil olivees_ES
dc.subjectAgricultural holdingses_ES
dc.subjectWaring distributiones_ES
dc.subjectEstimationes_ES
dc.subjectSpaines_ES
dc.titleModelling the number of olive groves in Spanish municipalitieses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.identifier.doi10.5424/sjar/2016141-7687


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