Nonlinear growth models for modeling oil palm yield growth
This study provided the basic needs of parameters estimation for nonlinear growth model such as partial derivatives of each model, determination of initial values for each parameter and statistical tests of industrial usage. Twelve nonlinear growth models and its partial derivatives for oil palm y...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Science Publications
2005
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| Online Access: | http://eprints.utm.my/2911/1/AzmeKhamis2005_NonlinerGrowthModelsForModeling.pdf |
| _version_ | 1825909309478797312 |
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| author | Khamis, Azme Ismail, Zuhaimy Haron, Khalid Mohammed, Ahmad Tarmizi |
| author_facet | Khamis, Azme Ismail, Zuhaimy Haron, Khalid Mohammed, Ahmad Tarmizi |
| author_sort | Khamis, Azme |
| collection | ePrints |
| description | This study provided the basic needs of parameters estimation for nonlinear growth model such as
partial derivatives of each model, determination of initial values for each parameter and statistical tests of
industrial usage. Twelve nonlinear growth models and its partial derivatives for oil palm yield growth are
presented in this study. The parameters are estimated using the Marquardt iterative method of nonlinear
regression relating oil palm yield growth data. The best model was selected based on the model
performance and it can be used to estimate the oil palm yield at any age of oil palm. This study found that
the Gompertz, logistic, log-logistic, Morgan-Mercer-Flodin and Chapman-Richard growth models have the
ability for quantifying a growth phenomenon that exhibit a sigmoid pattern over time. Based on the
statistical testing and goodness of fit, the best model is the Logistic model and followed by the Gompertz
model, Morgan-Mercer-Flodin, Chapman-Richard (with initial stage) and Log-logistic growth models |
| first_indexed | 2024-03-05T18:00:13Z |
| format | Article |
| id | utm.eprints-2911 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T18:00:13Z |
| publishDate | 2005 |
| publisher | Science Publications |
| record_format | dspace |
| spelling | utm.eprints-29112010-10-13T07:21:17Z http://eprints.utm.my/2911/ Nonlinear growth models for modeling oil palm yield growth Khamis, Azme Ismail, Zuhaimy Haron, Khalid Mohammed, Ahmad Tarmizi QA Mathematics This study provided the basic needs of parameters estimation for nonlinear growth model such as partial derivatives of each model, determination of initial values for each parameter and statistical tests of industrial usage. Twelve nonlinear growth models and its partial derivatives for oil palm yield growth are presented in this study. The parameters are estimated using the Marquardt iterative method of nonlinear regression relating oil palm yield growth data. The best model was selected based on the model performance and it can be used to estimate the oil palm yield at any age of oil palm. This study found that the Gompertz, logistic, log-logistic, Morgan-Mercer-Flodin and Chapman-Richard growth models have the ability for quantifying a growth phenomenon that exhibit a sigmoid pattern over time. Based on the statistical testing and goodness of fit, the best model is the Logistic model and followed by the Gompertz model, Morgan-Mercer-Flodin, Chapman-Richard (with initial stage) and Log-logistic growth models Science Publications 2005 Article PeerReviewed application/pdf en http://eprints.utm.my/2911/1/AzmeKhamis2005_NonlinerGrowthModelsForModeling.pdf Khamis, Azme and Ismail, Zuhaimy and Haron, Khalid and Mohammed, Ahmad Tarmizi (2005) Nonlinear growth models for modeling oil palm yield growth. Journal of Mathematics and Statistics, 1 (3). pp. 225-233. ISSN 1549-3644 http://www.scipub.org/fulltext/jms2/jms213225-233.pdf |
| spellingShingle | QA Mathematics Khamis, Azme Ismail, Zuhaimy Haron, Khalid Mohammed, Ahmad Tarmizi Nonlinear growth models for modeling oil palm yield growth |
| title | Nonlinear growth models for modeling oil palm yield growth |
| title_full | Nonlinear growth models for modeling oil palm yield growth |
| title_fullStr | Nonlinear growth models for modeling oil palm yield growth |
| title_full_unstemmed | Nonlinear growth models for modeling oil palm yield growth |
| title_short | Nonlinear growth models for modeling oil palm yield growth |
| title_sort | nonlinear growth models for modeling oil palm yield growth |
| topic | QA Mathematics |
| url | http://eprints.utm.my/2911/1/AzmeKhamis2005_NonlinerGrowthModelsForModeling.pdf |
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