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Ajustes de modelos não lineares de efeitos fixos, com ponderação e misto-aplicações
| Content Provider | Semantic Scholar |
|---|---|
| Author | Carvalho, Lidia Raquel De Pereira, Glauber Márcio Silveira Silva, Helenice De Oliveira Florentino Mischan, Martha Maria Furtado, Edson Luiz |
| Copyright Year | 2014 |
| Abstract | Nonlinear models tend to be used when it is suggested by theoretical considerations or by non-linear behavior. Even when a linear approximation is acceptable, a non-linear model can also be used to obtain a clear understanding of the parameters. The objective of this research was: to study of logistics, Gompertz, von Bertalanffy and Richards functions with adjustments in three structures: the fixed effects model, the weighting and mixed effects model adjusted to data of volume of the trunk of Eucalyptus grandis, from three growing regions belonging to Votorantim Celulose e Papel. The criteria used for the selection of models were: Error mean square, Akaike information criterion, Akaike weight, Schwarz Bayesian Information Criterion, Breusch-Pagan test and squared correlation coefficient. The model with weighting was the most appropriate. In the choice of the best function, Gompertz was the one that proved better, second was Richards. |
| Starting Page | 296 |
| Ending Page | 307 |
| Page Count | 12 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://jaguar.fcav.unesp.br/RME/fasciculos/v32/v32_n2/A9_LidiaRaquel.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
