{"id":"https://openalex.org/W2785511257","doi":"https://doi.org/10.32614/rj-2017-056","title":"Splitting It Up: The spduration Split-Population Duration Regression Package for Time-Varying Covariates","display_name":"Splitting It Up: The spduration Split-Population Duration Regression Package for Time-Varying Covariates","publication_year":2017,"publication_date":"2017-01-01","ids":{"openalex":"https://openalex.org/W2785511257","doi":"https://doi.org/10.32614/rj-2017-056","mag":"2785511257"},"language":"en","primary_location":{"id":"doi:10.32614/rj-2017-056","is_oa":true,"landing_page_url":"https://doi.org/10.32614/rj-2017-056","pdf_url":"https://journal.r-project.org/archive/2017/RJ-2017-056/RJ-2017-056.pdf","source":{"id":"https://openalex.org/S2489169438","display_name":"The R Journal","issn_l":"2073-4859","issn":["2073-4859"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The R Journal","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://journal.r-project.org/archive/2017/RJ-2017-056/RJ-2017-056.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5080876995","display_name":"Andreas Beger","orcid":"https://orcid.org/0000-0003-1883-3169"},"institutions":[{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]},{"id":"https://openalex.org/I170897317","display_name":"Duke University","ror":"https://ror.org/00py81415","country_code":"US","type":"education","lineage":["https://openalex.org/I170897317"]},{"id":"https://openalex.org/I165733156","display_name":"University of Georgia","ror":"https://ror.org/00te3t702","country_code":"US","type":"education","lineage":["https://openalex.org/I165733156"]}],"countries":["GB","US"],"is_corresponding":true,"raw_author_name":"Andreas Beger","raw_affiliation_strings":["Department of International Affairs University of Georgia Athens, GA United States of America","Department of Political Science University College London London United Kingdom","Ward Associates / Predictive Heuristics Tallinn Estonia","Department of Political Science Duke University Durham, NC United States of America"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of International Affairs University of Georgia Athens, GA United States of America","institution_ids":["https://openalex.org/I165733156"]},{"raw_affiliation_string":"Department of Political Science University College London London United Kingdom","institution_ids":["https://openalex.org/I45129253"]},{"raw_affiliation_string":"Ward Associates / Predictive Heuristics Tallinn Estonia","institution_ids":[]},{"raw_affiliation_string":"Department of Political Science Duke University Durham, NC United States of America","institution_ids":["https://openalex.org/I170897317"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108592984","display_name":"W Daniel","orcid":null},"institutions":[{"id":"https://openalex.org/I170897317","display_name":"Duke University","ror":"https://ror.org/00py81415","country_code":"US","type":"education","lineage":["https://openalex.org/I170897317"]},{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]},{"id":"https://openalex.org/I165733156","display_name":"University of Georgia","ror":"https://ror.org/00te3t702","country_code":"US","type":"education","lineage":["https://openalex.org/I165733156"]}],"countries":["GB","US"],"is_corresponding":false,"raw_author_name":"Daniel,W. Hill","raw_affiliation_strings":["Ward Associates / Predictive Heuristics Tallinn Estonia","Department of Political Science University College London London United Kingdom","Department of Political Science Duke University Durham, NC United States of America","Department of International Affairs University of Georgia Athens, GA United States of America"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Ward Associates / Predictive Heuristics Tallinn Estonia","institution_ids":[]},{"raw_affiliation_string":"Department of Political Science University College London London United Kingdom","institution_ids":["https://openalex.org/I45129253"]},{"raw_affiliation_string":"Department of Political Science Duke University Durham, NC United States of America","institution_ids":["https://openalex.org/I170897317"]},{"raw_affiliation_string":"Department of International Affairs University of Georgia Athens, GA United States of America","institution_ids":["https://openalex.org/I165733156"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5096309429","display_name":"W. Metternich Nils.","orcid":null},"institutions":[{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]},{"id":"https://openalex.org/I170897317","display_name":"Duke University","ror":"https://ror.org/00py81415","country_code":"US","type":"education","lineage":["https://openalex.org/I170897317"]},{"id":"https://openalex.org/I165733156","display_name":"University of Georgia","ror":"https://ror.org/00te3t702","country_code":"US","type":"education","lineage":["https://openalex.org/I165733156"]}],"countries":["GB","US"],"is_corresponding":false,"raw_author_name":"Nils.,W. Metternich","raw_affiliation_strings":["Department of Political Science University College London London United Kingdom","Department of Political Science Duke University Durham, NC United States of America","Department of International Affairs University of Georgia Athens, GA United States of America","Ward Associates / Predictive Heuristics Tallinn Estonia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Political Science University College London London United Kingdom","institution_ids":["https://openalex.org/I45129253"]},{"raw_affiliation_string":"Department of Political Science Duke University Durham, NC United States of America","institution_ids":["https://openalex.org/I170897317"]},{"raw_affiliation_string":"Department of International Affairs University of Georgia Athens, GA United States of America","institution_ids":["https://openalex.org/I165733156"]},{"raw_affiliation_string":"Ward Associates / Predictive Heuristics Tallinn Estonia","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037841475","display_name":"Shahryar Minhas","orcid":"https://orcid.org/0000-0002-8498-4005"},"institutions":[{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]},{"id":"https://openalex.org/I170897317","display_name":"Duke University","ror":"https://ror.org/00py81415","country_code":"US","type":"education","lineage":["https://openalex.org/I170897317"]},{"id":"https://openalex.org/I165733156","display_name":"University of Georgia","ror":"https://ror.org/00te3t702","country_code":"US","type":"education","lineage":["https://openalex.org/I165733156"]}],"countries":["GB","US"],"is_corresponding":false,"raw_author_name":"Shahryar Minhas","raw_affiliation_strings":["Department of Political Science University College London London United Kingdom","Ward Associates / Predictive Heuristics Tallinn Estonia","Department of Political Science Duke University Durham, NC United States of America","Department of International Affairs University of Georgia Athens, GA United States of America"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Political Science University College London London United Kingdom","institution_ids":["https://openalex.org/I45129253"]},{"raw_affiliation_string":"Ward Associates / Predictive Heuristics Tallinn Estonia","institution_ids":[]},{"raw_affiliation_string":"Department of Political Science Duke University Durham, NC United States of America","institution_ids":["https://openalex.org/I170897317"]},{"raw_affiliation_string":"Department of International Affairs University of Georgia Athens, GA United States of America","institution_ids":["https://openalex.org/I165733156"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103794744","display_name":"D. Ward Michael","orcid":null},"institutions":[{"id":"https://openalex.org/I165733156","display_name":"University of Georgia","ror":"https://ror.org/00te3t702","country_code":"US","type":"education","lineage":["https://openalex.org/I165733156"]},{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]},{"id":"https://openalex.org/I170897317","display_name":"Duke University","ror":"https://ror.org/00py81415","country_code":"US","type":"education","lineage":["https://openalex.org/I170897317"]}],"countries":["GB","US"],"is_corresponding":false,"raw_author_name":"Michael,D. Ward","raw_affiliation_strings":["Department of Political Science University College London London United Kingdom","Department of Political Science Duke University Durham, NC United States of America","Ward Associates / Predictive Heuristics Tallinn Estonia","Department of International Affairs University of Georgia Athens, GA United States of America"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Political Science University College London London United Kingdom","institution_ids":["https://openalex.org/I45129253"]},{"raw_affiliation_string":"Department of Political Science Duke University Durham, NC United States of America","institution_ids":["https://openalex.org/I170897317"]},{"raw_affiliation_string":"Ward Associates / Predictive Heuristics Tallinn Estonia","institution_ids":[]},{"raw_affiliation_string":"Department of International Affairs University of Georgia Athens, GA United States of America","institution_ids":["https://openalex.org/I165733156"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5080876995"],"corresponding_institution_ids":["https://openalex.org/I165733156","https://openalex.org/I170897317","https://openalex.org/I45129253"],"apc_list":null,"apc_paid":null,"fwci":4.5174,"has_fulltext":true,"cited_by_count":35,"citation_normalized_percentile":{"value":0.95534008,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":100},"biblio":{"volume":"9","issue":"2","first_page":"474","last_page":"474"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10167","display_name":"Influenza Virus Research Studies","score":0.9793000221252441,"subfield":{"id":"https://openalex.org/subfields/2713","display_name":"Epidemiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10167","display_name":"Influenza Virus Research Studies","score":0.9793000221252441,"subfield":{"id":"https://openalex.org/subfields/2713","display_name":"Epidemiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10410","display_name":"COVID-19 epidemiological studies","score":0.9667999744415283,"subfield":{"id":"https://openalex.org/subfields/2611","display_name":"Modeling and Simulation"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/covariate","display_name":"Covariate","score":0.8932247757911682},{"id":"https://openalex.org/keywords/duration","display_name":"Duration (music)","score":0.6555249094963074},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.613827645778656},{"id":"https://openalex.org/keywords/regression","display_name":"Regression","score":0.4925616383552551},{"id":"https://openalex.org/keywords/r-package","display_name":"R package","score":0.4758588671684265},{"id":"https://openalex.org/keywords/population","display_name":"Population","score":0.45733577013015747},{"id":"https://openalex.org/keywords/regression-analysis","display_name":"Regression analysis","score":0.44001662731170654},{"id":"https://openalex.org/keywords/econometrics","display_name":"Econometrics","score":0.42898523807525635},{"id":"https://openalex.org/keywords/demography","display_name":"Demography","score":0.4277900457382202},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.3736746907234192},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3264995813369751},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2792738080024719},{"id":"https://openalex.org/keywords/sociology","display_name":"Sociology","score":0.07596135139465332}],"concepts":[{"id":"https://openalex.org/C119043178","wikidata":"https://www.wikidata.org/wiki/Q320723","display_name":"Covariate","level":2,"score":0.8932247757911682},{"id":"https://openalex.org/C112758219","wikidata":"https://www.wikidata.org/wiki/Q16038819","display_name":"Duration (music)","level":2,"score":0.6555249094963074},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.613827645778656},{"id":"https://openalex.org/C83546350","wikidata":"https://www.wikidata.org/wiki/Q1139051","display_name":"Regression","level":2,"score":0.4925616383552551},{"id":"https://openalex.org/C2984074130","wikidata":"https://www.wikidata.org/wiki/Q73539779","display_name":"R package","level":2,"score":0.4758588671684265},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.45733577013015747},{"id":"https://openalex.org/C152877465","wikidata":"https://www.wikidata.org/wiki/Q208042","display_name":"Regression analysis","level":2,"score":0.44001662731170654},{"id":"https://openalex.org/C149782125","wikidata":"https://www.wikidata.org/wiki/Q160039","display_name":"Econometrics","level":1,"score":0.42898523807525635},{"id":"https://openalex.org/C149923435","wikidata":"https://www.wikidata.org/wiki/Q37732","display_name":"Demography","level":1,"score":0.4277900457382202},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.3736746907234192},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3264995813369751},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2792738080024719},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.07596135139465332},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0},{"id":"https://openalex.org/C124952713","wikidata":"https://www.wikidata.org/wiki/Q8242","display_name":"Literature","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.32614/rj-2017-056","is_oa":true,"landing_page_url":"https://doi.org/10.32614/rj-2017-056","pdf_url":"https://journal.r-project.org/archive/2017/RJ-2017-056/RJ-2017-056.pdf","source":{"id":"https://openalex.org/S2489169438","display_name":"The R Journal","issn_l":"2073-4859","issn":["2073-4859"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The R Journal","raw_type":"journal-article"},{"id":"pmh:oai:digitalcommons.unl.edu:r-journal-1643","is_oa":false,"landing_page_url":"https://digitalcommons.unl.edu/r-journal/669","pdf_url":null,"source":{"id":"https://openalex.org/S4306400577","display_name":"Lincoln (University of Nebraska)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I114395901","host_organization_name":"University of Nebraska\u2013Lincoln","host_organization_lineage":["https://openalex.org/I114395901"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"The R Journal","raw_type":"text"},{"id":"pmh:oai:eprints.ucl.ac.uk.OAI2:10042422","is_oa":false,"landing_page_url":"https://discovery.ucl.ac.uk/id/eprint/10042422/","pdf_url":null,"source":{"id":"https://openalex.org/S4306400024","display_name":"UCL Discovery (University College London)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I45129253","host_organization_name":"University College London","host_organization_lineage":["https://openalex.org/I45129253"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"   The R Journal , 9  (2)   pp. 474-486.   (2017)      ","raw_type":"Article"}],"best_oa_location":{"id":"doi:10.32614/rj-2017-056","is_oa":true,"landing_page_url":"https://doi.org/10.32614/rj-2017-056","pdf_url":"https://journal.r-project.org/archive/2017/RJ-2017-056/RJ-2017-056.pdf","source":{"id":"https://openalex.org/S2489169438","display_name":"The R Journal","issn_l":"2073-4859","issn":["2073-4859"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The R Journal","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.550000011920929,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2785511257.pdf","grobid_xml":"https://content.openalex.org/works/W2785511257.grobid-xml"},"referenced_works_count":26,"referenced_works":["https://openalex.org/W1570622790","https://openalex.org/W1673240205","https://openalex.org/W1965460333","https://openalex.org/W1994680226","https://openalex.org/W2020723658","https://openalex.org/W2028760981","https://openalex.org/W2039672920","https://openalex.org/W2051590765","https://openalex.org/W2056946959","https://openalex.org/W2069916864","https://openalex.org/W2070637054","https://openalex.org/W2092660489","https://openalex.org/W2097606600","https://openalex.org/W2134826100","https://openalex.org/W2143887617","https://openalex.org/W2151780178","https://openalex.org/W2167383241","https://openalex.org/W2905118658","https://openalex.org/W3123271700","https://openalex.org/W3124322728","https://openalex.org/W3125937743","https://openalex.org/W4254304286","https://openalex.org/W4399545439","https://openalex.org/W4399569421","https://openalex.org/W4399582514","https://openalex.org/W4399647803"],"related_works":["https://openalex.org/W4289356671","https://openalex.org/W2389155397","https://openalex.org/W2165884543","https://openalex.org/W2312753042","https://openalex.org/W4311995277","https://openalex.org/W3186837933","https://openalex.org/W2800090224","https://openalex.org/W1969346022","https://openalex.org/W2368989808","https://openalex.org/W2034959125"],"abstract_inverted_index":{"We":[0,38,72],"present":[1],"an":[2,74],"implementation":[3],"of":[4,28],"split-population":[5,67],"duration":[6,30,56],"regression":[7],"in":[8],"the":[9,29,32,50],"spduration":[10],"The":[11,58],"statistical":[12],"model":[13],"accounts":[14],"for":[15,41,66],"units":[16,44],"that":[17,46],"are":[18,25],"immune":[19,43],"to":[20,54,77],"a":[21],"certain":[22],"outcome":[23],"and":[24,62,69],"not":[26],"part":[27],"process":[31],"researcher":[33],"is":[34],"primarily":[35],"interested":[36],"in.":[37],"provide":[39,73],"insights":[40],"when":[42],"exist,":[45],"can":[47],"significantly":[48],"increase":[49],"predictive":[51],"performance":[52],"compared":[53],"standard":[55],"models.":[57,71],"package":[59],"includes":[60],"estimation":[61],"several":[63],"post-estimation":[64],"methods":[65],"Weibull":[68],"log-logistic":[70],"empirical":[75],"application":[76],"data":[78],"on":[79],"military":[80],"coups.":[81]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":20}],"updated_date":"2026-05-06T08:25:59.206177","created_date":"2025-10-10T00:00:00"}
