نتایج جستجو برای: pre structured multivariate model

تعداد نتایج: 2547647  

Journal: :Australasian Journal of Educational Technology 2018

Journal: :Semina-ciencias Agrarias 2022

Feijoa (Acca sellowiana) is a native Brazilian fruit with peculiar flavour, considerable amount of bioactive compounds and antioxidant activity. Even though this tree currently cultivated in several countries around the world, Brazil, process domestication underway, selection breeding new genotypes that are more productive better quality necessary. The objective work was to evaluate phenotypic ...

1998
Omar Aguilar Jose M Quintana Neil Shephard

We discuss the development of dynamic factor models for multivariate nancial time series, and the incorporation of stochastic volatility components for latent factor processes. Bayesian inference and computation is developed and explored in a study of the dynamic factor structure of daily spot exchange rates for a selection of international currencies. The models are direct generalisations of u...

Journal: :journal of advances in medical education and professionalism 0
narges vaseghi clinical skill lab center, shiraz university of medical sciences, shiraz, iran mahvash alizadeh naini clinical skill lab center, shiraz university of medical sciences, shiraz, iran reza labaf ghasemi education development center, shahid beheshti university of medical sciences, tehran, iran soheila amiri clinical skill lab center, shiraz university of medical sciences, shiraz, iran

introduction: objective structured clinical examination (osce) is one of the most appropriate methods for assessment of clinical skills.validity and reliability assurance is a mandatory factor for any assessment tool. in shiraz university of medical sciences, medical students’ clinical competences are evaluated by a pre-internship osce. this study is designed to examine the validity and reliabi...

Journal: :Systematic biology 2015
Josef C Uyeda Daniel S Caetano Matthew W Pennell

Most existing methods for modeling trait evolution are univariate, although researchers are often interested in investigating evolutionary patterns and processes across multiple traits. Principal components analysis (PCA) is commonly used to reduce the dimensionality of multivariate data so that univariate trait models can be fit to individual principal components. The problem with using standa...

2015
Josef C. Uyeda Daniel S. Caetano MatthewW. Pennell

Most existingmethods formodeling trait evolution are univariate, while researchers are oŸen interested in investigating evolutionary patterns and processes across multiple traits. Principal components analysis (PCA) is commonly used to reduce the dimensionality of multivariate data as univariate trait models can be t to the individual principal components. e 15 problem with using standard PCA ...

2017
Ruofei Liang Junhong Li Mao Li Yuan Yang Xiang Wang Qing Mao Yanhui Liu

Accumulating evidence demonstrates that pre-surgical serum lipid levels are linked to the clinical outcome of different types of human malignant tumors, but few studies have explored the prognostic value of these easily accessible parameters in glioblastoma. The aim of the current study was to validate the association between pre-surgical serum lipid levels and the clinical outcome of patients ...

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