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A beta partial least squares regression model: Diagnostics and application to mining industry data
Huerta, Mauricio; Leiva, Víctor; Lillo, Camilo; Rodríguez-Gallardo, Marcelo (2018)We propose a methodology based on partial least squares (PLS) regression models using the beta distribution, which is useful for describing data measured between zero and one. The beta PLS model parameters are estimated ...
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Consumer responses to agricultural produce advertising in the O’Higgins Region of Chile
Adasme-Berríos, Cristian; Jara-Rojas, Roberto; Ramos-Cabello, Bárbara; Rodríguez-Gallardo, Marcelo; Mora, Marcos (2013)The main objective of this article was to analyze consumer responses to agricultural produce advertising. A survey was given to a non-probabilistic sample of 400 consumers in Rancagua, the capital city of the O’Higgins ...
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Ideas previas sobre la química en alumnos que ingresan a la carrera de pedagogía en ciencias de la Universidad Católica del Maule, Chile
Se describen preconcepciones sobre química en alumnos que ingresan a la Pedagogía en Ciencias. Se aplicaron dos test, uno de conocimientos de química y un test KPSI para declarar lo que creen saber sobre los contenidos. ...
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On a partial least squares regression model for asymmetric data with a chemical application in mining
Huerta, Mauricio; Leiva, Víctor; Liu, Shuangzhe; Rodríguez-Gallardo, Marcelo; Villegas, Danny (2019)In chemometrical applications, covariates in regression models are often correlated, causing a collinearity problem that can be solved by partial least squares (PLS) regression. In addition, high dimensionality in the space ...
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Partial least squares models and their formulations, diagnostics and applications to spectroscopy
Huerta, Mauricio; Leiva, Víctor; Marchant-Fuentes, Carolina; Rodríguez-Gallardo, Marcelo (2020)Partial least squares (PLS) models are a multivariate technique developed to solve the problem of multicollinearity and/or high dimensionality related to explanatory variables in multiple linear models. PLS models have ...
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Partial least squares models and their formulations, diagnostics and applications to spectroscopy
Huerta, Mauricio; Leiva, Víctor; Marchant-Fuentes, Carolina; Rodríguez-Gallardo, Marcelo (2020)Partial least squares (PLS) models are a multivariate technique developed to solve the problem of multicollinearity and/or high dimensionality related to explanatory variables in multiple linear models. PLS models have ...
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Relación entre la agilidad respecto de variables antropométricas en niños pertenecientes a una escuela de tenis privada de la provincia de Concepción
Luna-Villouta, Pablo; Márquez Sánchez, Cristian; Rodríguez-Gallardo, Marcelo; Martínez Salazar, Cristian; Vargas, Rodrigo (2019)El tenis es un tipo de deporte caracterizado por esfuerzos cortos e intermitentes, la evidencia apoya el argumento de que las capacidades funcionales como la fuerza, la potencia, la velocidad y la agilidad son necesarias ...
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Who are the potential consumers of organic fruits and vegetables in Central Chile? A CHAID approach
Adasme-Berríos, Cristian; Sánchez, Mercedes; Jara-Rojas, Roberto; Engler, Alejandra; Mora, Marcos; Rodríguez-Gallardo, Marcelo (2015)La demanda por frutas y verduras (F&V) orgánicas está creciendo alrededor del mundo, creando oportunidades de mercado para los países en desarrollo como principales proveedores. Sin embargo, la mayoría de los países en ...