{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-WRX35XC0/b153fe16-c577-4804-8bc0-54c77c8909e8/PDF","dcterms:extent":"753 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-WRX35XC0/98a92a64-a061-4694-bb0d-a93e953f071b/TEXT","dcterms:extent":"38 KB"}],"edm:TimeSpan":{"@rdf:about":"2004-2025","edm:begin":{"@xml:lang":"en","#text":"2004"},"edm:end":{"@xml:lang":"en","#text":"2025"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:DOC-WRX35XC0","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-1fyqipbt"},{"@xml:lang":"sl","#text":"Acta agriculturae Slovenica"}],"dcterms:issued":"2024","dc:creator":["Bitežnik, Luka","Kastelec, Damijana","Šinkovec, Hana"],"dc:format":[{"@xml:lang":"sl","#text":"10 str."},{"@xml:lang":"sl","#text":"letnik:120"},{"@xml:lang":"sl","#text":"številka:3"}],"dc:identifier":["DOI:10.14720/aas.2024.120.3.19353","ISSN:1854-1941","COBISSID_HOST:211015171","URN:URN:NBN:SI:doc-WRX35XC0"],"dc:language":"sl","dc:publisher":{"@xml:lang":"sl","#text":"Založba Univerze v Ljubljani"},"dc:subject":[{"@xml:lang":"sl","#text":"Firthov tip penalizacije"},{"@xml:lang":"en","#text":"Firth's penalized likelihood"},{"@xml:lang":"sl","#text":"ločenost"},{"@xml:lang":"en","#text":"logistic regression"},{"@xml:lang":"sl","#text":"logistična regresija"},{"@xml:lang":"sl","#text":"majhni vzorci"},{"@xml:lang":"en","#text":"maximum likelihood"},{"@xml:lang":"sl","#text":"metoda največjega verjetja"},{"@xml:lang":"sl","#text":"redki dogodki"},{"@xml:lang":"en","#text":"separation"},{"@xml:lang":"en","#text":"small datasets"},{"@xml:lang":"en","#text":"sparse datasets"}],"dcterms:temporal":{"@rdf:resource":"2004-2025"},"dc:title":{"@xml:lang":"sl","#text":"Logistična regresija in problem ločenosti|"},"dc:description":{"@xml:lang":"sl","#text":"Logistična regresija se uporablja za preučevanje povezanosti med binarno odzivno spremenljivko (nek dogodek se zgodi ali pa ne) in množico neodvisnih spremenljivk. Z mo-delom lahko napovemo verjetnosti dogodka za nove enote, po-gojno na vrednosti neodvisnih spremenljivk. Poleg tega ocene parametrov modela, ki jih dobimo z metodo največjega verje-tja, lahko interpretiramo kot logaritem razmerja obetov. Kadar so vzorci majhni ali dogodki, v kateri od skupin, ki določajo neodvisno spremenljivko, redki, se lahko zgodi, da algoritem po metodi največjega verjetja ne konvergira, ocene parametrov modela pa so posledično nesmiselne. Pojav se v statistiki ime-nuje »ločenost«. Ker programska oprema problema pogosto ne identificira, raziskovalci ločenost v praksi lahko prezrejo. Dobljeni rezultati raziskovalce lahko begajo ali pa jih napačno interpretirajo. S člankom zato želimo: motivirati uporabo lo-gistične regresije za preučevanje povezanosti binarne odzivne spremenljivke z množico neodvisnih spremenljivk; bralcem predstaviti problem ločenosti na konkretnem primeru; pokaza-ti, kako problem ločenosti premostiti"},"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:DOC-WRX35XC0","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-WRX35XC0"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-WRX35XC0/b153fe16-c577-4804-8bc0-54c77c8909e8/PDF"},"edm:rights":{"@rdf:resource":"http://creativecommons.org/licenses/by/4.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Univerza v Ljubljani, Biotehniška fakulteta"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:DOC-WRX35XC0/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-WRX35XC0"}}}}