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Assessing the significance of covariates in output oriented data envelopment analysis with two stage regression models. Author(s): SOUZA, G. da S. e; GOMES, E. G. We propose alternative regression models to assess the effects of covariates in output oriented DEA scores. We use probability choice models combined with specifications related to the gamma and to th... ... Repository: BDPA Publication year: 2014
Genetic parameters for milk production by using random regression models with different alternatives of fixed regression modeling. Author(s): COBUCI, J. A.; COSTA, C. N.; BRACCINI NETO, J.; FREITAS, A. F. de Records of test-day milk yields of the first three lactations of 25,500 Holstein cows were used to estimate genetic parameters for milk yield by using two alternatives of definition of fixed regressio... ... Repository: BDPA Publication year: 2011
Persistency of lactation using random regression models and different fixed regression modeling approaches. Author(s): COBUCI, J. A.; COSTA, C. N. Milk yield test-day records on the first three lactations of 25,500 Holstein cows were used to estimate genetic parameters and predict breeding values for nine measures of persistency and 305-d milk y... ... Repository: BDPA Publication year: 2012
Quantifying individual variation in reaction norms using random regression models fitted through Legendre polynomials: application in eucalyptus breeding. Author(s): ALVES, R. S.; RESENDE, M. D. V. de; ROCHA, J. R. do A. S. de C.; PEIXOTO, M. A.; TEODORO, P. E.; SILVA, F. F. e; BHERING, L. L.; SANTOS, G. A. dos An accurate, efficient and informative statistical method for analyses of genotype × environment (G × E) interactions is a key requirement for progress in any breeding program. Thus, the objective of... ... Repository: BDPA Publication year: 2020
Truncated beta nonlinear regression models for soil-water characteristic curves estimation. Author(s): PARAÍBA, C. C. M.; DINIZ, C. A. R.; MAIA, A. de H. N.; RODRIGUES, L. N. We propose an alternative approach for estimating soil-water characteristic curves based on truncated beta nonlinear regression models. Thus, assuming that the response variable follows a truncated be... ... Repository: BDPA Publication year: 2013
Bayesian segmented regression model to evaluate the adaptability and stability of maize in Northeastern Brazil. Author(s): OLIVEIRA, T. R. A. de; CARVALHO, H. W. L. de; NASCIMENTO, M.; SUELA, M. M.; CARDOSO, M. J.; OLIVEIRA, G. H. F. Although maize is one of the main crops in the Northeast region, yield is still considered low when compared to other regions. One of the main solutions to increasing yield is the selection of cultiva... ... Repository: BDPA Publication year: 2023
Mixed models in nonlinear regression for description of the growth of Nelore Cattle. Author(s): CAMARGO JÚNIOR, R. N. C.; ARAÚJO, C. V. de; SILVA, W. C. da; ARAÚJO, S. I. de; LÔBO, R. B.; NAKABASHI, L. R. M.; CASTRO, L. M. de; MENEZES, F. L.; SILVA, A. G. M. e; SILVA, L. K. X.; SILVA, J. A. R. da; BARBOSA, A. V. C.; MARQUES, J. R. F.; LOURENÇO JÚNIOR, J. de Body weight records were used to characterize the growth curve of Nelore cattle. Body weight was regressed as a function of age, for both sexes, by using nonlinear models through the functions of Brod... ... Repository: BDPA Publication year: 2023
Assessment of sugarcane production using regression models and RGB vegetation indices data. Author(s): YANO, I. H.; CARVALHO, M. L. de M; MARCHIORI, L. F. S.; SILVA, F. C. da Productivity estimates play a crucial role for sugarcane producers and sugar mills in planning production, aligning it with demand forecasts. Manual estimations demand considerable effort and time, pr... ... Repository: BDPA Publication year: 2024
Genetic evaluation for persistency of lactation in Holstein cows using a random regression model. Author(s): COBUCI, J. A.; EUCLYDES, R. F.; COSTA, C. N.; TORRES, R. de A.; LOPES, P. S.; PEREIRA, C. S. A model for analyzing test day records including both fixed and random coefficients was applied to the genetic evaluation of first lactation data for Holstein cows. Data comprising 87045 test-day milk... ... Repository: BDPA Publication year: 2007
Probabilistic methods for seasonal forecasting in a changing climate: Cox-type regression models. Author(s): MAIA, A. de H. N.; MEINKE, H. For climate risk management, cumulative distribution functions (CDFs) are an important source of information. They are ideally suited to compare probabilistic forecasts of primary (e.g. rainfall) or s... ... Repository: BDPA Publication year: 2009

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