Inflection and stability points of diphasic logistic analysis of growth
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000300215&lng=en&nrm=iso&tlng=en http://hdl.handle.net/11449/128551 |
Resumo: | Growth functions with inflection points following a diphasic model, can be adjusted by two approaches using segmented regression or the sum of two functions. In both cases, there are two functions, one for each phase, with inflection and stability points. However, when they are summed, the result is a new function and the points of inflection and stability are different from those obtained from using each function individually. A method to determine these points in a diphasic logistics sum of functions is suggested and the results obtained from fitting the models to eucalyptus growth data showed a better fit of the logistic diphasic sum as compared with segmented regression and monophasic logistic models. |
id |
UNSP_24c0e6bef18e20a34bed10ca563fd490 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/128551 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Inflection and stability points of diphasic logistic analysis of growthNonlinear modelsSegmented regressionSum of logisticsGrowth functions with inflection points following a diphasic model, can be adjusted by two approaches using segmented regression or the sum of two functions. In both cases, there are two functions, one for each phase, with inflection and stability points. However, when they are summed, the result is a new function and the points of inflection and stability are different from those obtained from using each function individually. A method to determine these points in a diphasic logistics sum of functions is suggested and the results obtained from fitting the models to eucalyptus growth data showed a better fit of the logistic diphasic sum as compared with segmented regression and monophasic logistic models.Sao Paulo State Univ, IBB Dept Biostat, BR-18618970 Botucatu, SP, BrazilSao Paulo State Univ, IBB Dept Biostat, BR-18618970 Botucatu, SP, BrazilUniv Sao PaoloUniversidade Estadual Paulista (Unesp)Mischan, Martha Maria [UNESP]Souza Passos, Jose Raimundo de [UNESP]Pinho, Sheila Zambello de [UNESP]Carvalho, Lidia Raquel de [UNESP]2015-10-21T13:10:53Z2015-10-21T13:10:53Z2015-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article215-220application/pdfhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000300215&lng=en&nrm=iso&tlng=enScientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 72, n. 3, p. 215-220, 2015.0103-9016http://hdl.handle.net/11449/12855110.1590/0103-9016-2014-0212S0103-90162015000300215WOS:000357631600004S0103-90162015000300215.pdf411437672187315665078582038994155493452207047677Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScientia Agricola0,578info:eu-repo/semantics/openAccess2023-12-10T06:23:01Zoai:repositorio.unesp.br:11449/128551Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:59:11.993449Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Inflection and stability points of diphasic logistic analysis of growth |
title |
Inflection and stability points of diphasic logistic analysis of growth |
spellingShingle |
Inflection and stability points of diphasic logistic analysis of growth Mischan, Martha Maria [UNESP] Nonlinear models Segmented regression Sum of logistics |
title_short |
Inflection and stability points of diphasic logistic analysis of growth |
title_full |
Inflection and stability points of diphasic logistic analysis of growth |
title_fullStr |
Inflection and stability points of diphasic logistic analysis of growth |
title_full_unstemmed |
Inflection and stability points of diphasic logistic analysis of growth |
title_sort |
Inflection and stability points of diphasic logistic analysis of growth |
author |
Mischan, Martha Maria [UNESP] |
author_facet |
Mischan, Martha Maria [UNESP] Souza Passos, Jose Raimundo de [UNESP] Pinho, Sheila Zambello de [UNESP] Carvalho, Lidia Raquel de [UNESP] |
author_role |
author |
author2 |
Souza Passos, Jose Raimundo de [UNESP] Pinho, Sheila Zambello de [UNESP] Carvalho, Lidia Raquel de [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Mischan, Martha Maria [UNESP] Souza Passos, Jose Raimundo de [UNESP] Pinho, Sheila Zambello de [UNESP] Carvalho, Lidia Raquel de [UNESP] |
dc.subject.por.fl_str_mv |
Nonlinear models Segmented regression Sum of logistics |
topic |
Nonlinear models Segmented regression Sum of logistics |
description |
Growth functions with inflection points following a diphasic model, can be adjusted by two approaches using segmented regression or the sum of two functions. In both cases, there are two functions, one for each phase, with inflection and stability points. However, when they are summed, the result is a new function and the points of inflection and stability are different from those obtained from using each function individually. A method to determine these points in a diphasic logistics sum of functions is suggested and the results obtained from fitting the models to eucalyptus growth data showed a better fit of the logistic diphasic sum as compared with segmented regression and monophasic logistic models. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-21T13:10:53Z 2015-10-21T13:10:53Z 2015-05-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000300215&lng=en&nrm=iso&tlng=en Scientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 72, n. 3, p. 215-220, 2015. 0103-9016 http://hdl.handle.net/11449/128551 10.1590/0103-9016-2014-0212 S0103-90162015000300215 WOS:000357631600004 S0103-90162015000300215.pdf 4114376721873156 6507858203899415 5493452207047677 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000300215&lng=en&nrm=iso&tlng=en http://hdl.handle.net/11449/128551 |
identifier_str_mv |
Scientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 72, n. 3, p. 215-220, 2015. 0103-9016 10.1590/0103-9016-2014-0212 S0103-90162015000300215 WOS:000357631600004 S0103-90162015000300215.pdf 4114376721873156 6507858203899415 5493452207047677 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Scientia Agricola 0,578 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
215-220 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Sao Paolo |
publisher.none.fl_str_mv |
Univ Sao Paolo |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129145836666880 |