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The use of analysis of variance and three-way factor analysis methods for studying the quality of a sensory panel Organic Eprints
Romano, Rosaria; Næs, Tormod; Brockhoff, Per Bruun.
In sensory analysis a panel of assessors evaluate a collection of samples/products with respect to a number of sensory characteristics. Assessments are collected in a threeway data matrix crossing products, attributes and assessors. The main objective of the experiment is to evaluate products. However, the performance of each assessor and of the panel as a whole is of crucial importance for a successful analysis. At this aim univariate analysis for each sensory attribute as well as multi-way analysis considering all directions of information are usually performed. The present work studies the quality of a panel...
Tipo: Conference paper, poster, etc. Palavras-chave: Surveys and statistics.
Ano: 2007 URL: http://orgprints.org/11285/1/RomN%C3%A6Bro.pdf
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USO DE ANÁLISE ESTATÍSTICA MULTIVARIADA PARA TIPIFICAÇÃO DE PRODUTORES DE LEITE DE MINAS GERAIS AgEcon
Neto, Armando Chinelatto; Castro, Gilmar Pinheiro Cunha; Lima, Joao Eustaquio de.
The present work had as its main objective to identify and characterize milk production systems through methods of multivaried statistical analysis. Factorial analysis, cluster, discriminant and canonical correlation were utilized. The production gradation and defrayal were the main classification criterium among the productors. Combining the results obtained with the cluster analysis and the canonical correlation analysis, the second classification analysis aggregates the grazing lands and the care with the flock health. Three productors groups were identified, among which the first one...
Tipo: Journal Article Palavras-chave: Multivaried analysis; Milk cattle raising; Minas Gerais.; Livestock Production/Industries; Research Methods/ Statistical Methods.
Ano: 2005 URL: http://purl.umn.edu/44039
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The Relevance of the Policies of Development in the Agri-Food Sector of Emilia-Romagna Region AgEcon
Brasili, Cristina; Bonetti, Mirko.
The aim of this paper is to analysis the impact of the policies of development and investments in the food industry at geographical and enterprises levels. We will analysis how the different geographical areas inside the Italian region Emilia-Romagna are sensitive to the development policies. A Principal Component Analysis and a Cluster Analysis will be applied to determine the most homogeneous geographical areas with respect to the considered variables. Then for evaluating the sensibility of these areas with respect to changes in investments and policies for food industry enterprise will be applied a Multicriterial
Tipo: Conference Paper or Presentation Palavras-chave: Agri-food sector; Development Policies; Food industry; Multicriterial Analysis; Region Emilia-Romagna; Sensitivity Analysis; Community/Rural/Urban Development.
Ano: 2005 URL: http://purl.umn.edu/24438
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Analyzing distances AgEcon
Fenty, Justin.
Gower and Krzanowski (1999) described the analysis of a multivariate dataset that violated the assumptions of normality for multivariate analysis of variance. They developed a method comprising two aspects: a graphical representation of the points in a fewer number of dimensions, known as principal coordinate analysis; and a technique similar to MANOVA except that it was based on partitioning the distances between subjects, rather than sums of squares, and did not assume that the data followed any particular distribution. This article summarizes both aspects of their analysis and describes the Stata pco and aod commands,...
Tipo: Journal Article Palavras-chave: Multivariate data; Principal coordinate analysis; Multidimensional scaling; Euclidean distance; Gower's general coefficient of similarity; Eigenvectors; Analysis of distance; MANOVA; Partitioning of squared distance; Randomization tests; Contrasts; Idempotent matrices; Research Methods/ Statistical Methods.
Ano: 2004 URL: http://purl.umn.edu/116209
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An Economic and Statistical Analysis of Solids-Not-Fat and Protein Components of Milk AgEcon
Luedtke, Larry; Stelly, Randall.
Tipo: Report Palavras-chave: Economic Analysis; Statistical Analysis; Solids-Not-Fat; Protein; Milk; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 1975 URL: http://purl.umn.edu/97644
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Submenu and dialogs for meta-analysis commands AgEcon
Steichen, Thomas J..
The metadialog package provides Stata dialog boxes for the publicly available meta-analysis commands. It includes the commands needed to create a Meta-Analysis submenu on the StataCorp-defined User menu.
Tipo: Journal Article Palavras-chave: Dialog; Menu; Meta-analysis; Research Methods/ Statistical Methods.
Ano: 2004 URL: http://purl.umn.edu/116232
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Analysis of experiments in square lattice with emphasis on variance components. i. Individual analysis PAB
Silva,Heyder Diniz; Regazzi,Adair José; Cruz,Cosme Damião; Viana,José Marcelo Soriano.
This paper focused on four alternatives of analysis of experiments in square lattice as far as the estimation of variance components and some genetic parameters are concerned: 1) intra-block analysis with adjusted treatment and blocks within unadjusted repetitions; 2) lattice analysis as complete randomized blocks; 3) intrablock analysis with unadjusted treatment and blocks within adjusted repetitions; 4) lattice analysis as complete randomized blocks, by utilizing the adjusted means of treatments, obtained from the analysis with recovery of interblock...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Experimental design; Genetic parameters; Plant breeding.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X1999001000007
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Review of A Stata Companion to Political Analysis by Pollock AgEcon
Allard, Scott W..
This article reviews A Stata Companion to Political Analysis by Philip H. Pollock III.
Tipo: Article Palavras-chave: Textbook; Political analysis; Introductory statistics; Research Methods/ Statistical Methods.
Ano: 2006 URL: http://purl.umn.edu/119247
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Review of Event History Analysis with Stata by Blossfeld, Golsch, and Rohwer AgEcon
Kalter, Frank.
This article reviews Event History Analysis with Stata by Blossfeld, Golsch, and Rohwer.
Tipo: Article Palavras-chave: Causal modeling; Event history analysis; TDA; Teaching; Research Methods/ Statistical Methods.
Ano: 2008 URL: http://purl.umn.edu/120935
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A factor analysis approach to measure the biased effects of retail fruit juice advertising AgEcon
Gao, Xiaoming; Lee, Jonq-Ying.
Tipo: Report Palavras-chave: Fruit juice advertising; Factor analysis; Agribusiness; Demand and Price Analysis.
Ano: 1994 URL: http://purl.umn.edu/52742
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Review of Data Analysis Using Stata by Kohler and Kreuter AgEcon
Schumm, L. Philip.
This article reviews Data Analysis Using Stata by Kohler and Kreuter.
Tipo: Journal Article Palavras-chave: Data analysis; Introductory; Teaching; GSOEP; Research Methods/ Statistical Methods.
Ano: 2005 URL: http://purl.umn.edu/117549
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Problems in Aggregate Agricultural Supply Analysis; I - The Construction of Time Series for Analysis AgEcon
Powell, Alan A.; Gruen, Fred H.G..
Tipo: Journal Article Palavras-chave: Demand and Price Analysis.
Ano: 1966 URL: http://purl.umn.edu/8796
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Analysis of multivariate genotype - environment data using Nonlinear Canonical Correlation Analysis Organic Eprints
Pinnschmidt, H.O..
Nonlinear Canonical Correlation Analysis (NCCA) is a method well suited for visualising the main features in multivariate data of various scales. NCCA is useful for obtaining an overall orientation of genotype properties and environment characteristics.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection.
Ano: 2004 URL: http://orgprints.org/8021/1/8021.ppt
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Multivariate analysis of stable isotope data in the traceability process for birds - doi: 10.4025/actascianimsci.v34i4.13434 Animal Sciences
Sartori, Maria Márcia Pereira; Denadai, Juliana Célia; Garcia, Amélia Maria Lima; Carrijo, Alfredo Sampaio; Ducatti, Carlos.
 Isotope analysis has proved to be an extremely important tool in the traceability process; however, statistical analyses of the results show discrepancies, as the data depend on and originate from several chemical elements such as carbon, hydrogen, oxygen, nitrogen and sulfur (CHONS). In order to establish the proper analysis of traceability data for birds using the stable isotope technique and evaluate the need for a combined analysis of the variables, data for carbon-13 and nitrogen-15 were used from eggs (albumen + yolk) of laying hens and the pectoral muscle of broilers, which were subjected to univariate statistical
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.00.00-2 ANOVA; Discriminant analysis; Carbon-13; MANOVA; Nitrogen-15.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/13434
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Characterization of tomato generations according to a three-way data analysis Bragantia
Medico,Ana Paula Del; Cabodevila,Victoria Guadalupe; Vitelleschi,Maria Susana; Pratta,Guillermo Raúl.
ABSTRACT Availability of a three-way data analysis to characterize two consecutive tomato (Solanum lycopersicum) generations is necessary to continue a plant breeding program with less uncertainty. The aim of this work was to analyze tomato fruit quality from F2 and F3 populations by two three-way data analysis: multiple factorial analysis (MFA) and generalized procrustes analysis (GPA). These techniques have the same main objective, searching for a common structure, but they achieve it in different ways. This work evaluated 18 tomato genotypes, represented by individual plants in F2 and selfed families in F3. The same...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Three-way data analysis; Multiple factorial analysis; Generalized procrustes analysis; Plant breeding; Plant genetic resources.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100008
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Exploring the Promise of Actor Analysis for Environmental Policy Analysis: Lessons from Four Cases in Water Resources Management Ecology and Society
Hermans, Leon M.; Delft University of Technology; l.m.hermans@tudelft.nl.
A persistent challenge for the development of well-informed and sound environmental policies is to improve the connection between environmental experts, decision makers, and other involved actors. Answers are sought in processes for social learning and adaptive co-management that engage experts, decision makers, and local actors in an interactive way of policy making. The preparation and organization of such interactive processes is usefully supported by actor analysis, which can help to identify the main actors to be involved in environmental policy making, to locate useful local knowledge, to identify potential conflicts, and to assess the feasibility of different policy measures. I explored the promise that actor
Tipo: Peer-Reviewed Reports Palavras-chave: Actor analysis; Environmental policy; Policy analysis; Stakeholder analysis; Water resources management.
Ano: 2008
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PUBLIC INVESTMENT ANALYSIS AND ITS RELEVANCE TO DEVELOPMENT PLANNING IN THE LDC'S AgEcon
Johnson, Joseph S..
Over the past two decades public investment analysis has increased considerably, both in theory and practice. This can be observed from the vast amount of literature which is now available in this field compared to the interwar period, and the use being made of benefit cost analysis and other related investment analysis in decision making for the allocation of public resources. Public investment analysis in the form of benefit cost analysis was first explored by a Frenchman, Jules Dupuit, towards the middle of the 19th century. The first systematic attempt to apply benefit cost
Tipo: Thesis or Dissertation Palavras-chave: International Development; Public Economics.
Ano: 1971 URL: http://purl.umn.edu/11063
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The Importance of Apple attributes: A Comparison of Self-explicated and Conjoint Analysis Results AgEcon
Markovina, Jerko; Kovacic, Damir.
the goal of this article was to determine the importance of apple attributes using two research techniques – self-explicated procedure and conjoint analysis. Research was conducted on a sample of 426 consumers of apples in Zagreb, Croatia. The results of self-explicated and conjoint analysis procedures revealed differences in ranking of apple attributes regarding their importance. It is demonstrated that conjoint analysis gives more detailed results and that it is not influenced by respondents’ tendency to give socially acceptable answers. The results of conjoint analysis also give more information for the producers of...
Tipo: Conference Paper or Presentation Palavras-chave: Apple; Conjoint analysis; Self-explicated method; Demand and Price Analysis.
Ano: 2008 URL: http://purl.umn.edu/44401
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Overall Evaluation on the Level of Rural Economic Development in 31 Regions of China AgEcon
Yang, Dao-jian; Liu, Su-xia; Zhang, Zan-zan.
Taking China Rural Statistical Yearbook in 2008 as the data source, we select 10 indices scientifically and rationally. By using SPSS statistical software, factor analysis method and cluster analysis method in multivariate statistical analysis, we conduct analysis on the level of rural economic development in 31 provinces, municipalities directly under the Central Government, autonomous regions in China. Finally we extract 4 composite factors and offer the overall ranking of them. We divide the 31 regions of China into four types, namely the regions with developed agricultural economy, the regions with relatively developed...
Tipo: Journal Article Palavras-chave: Agricultural economy; Multivariate statistical analysis; Factor Analysis; Cluster Analysis; China; Agribusiness.
Ano: 2011 URL: http://purl.umn.edu/118222
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Texture analysis of computed tomography images of acute ischemic stroke patients BJMBR
Oliveira,M.S.; Fernandes,P.T.; Avelar,W.M.; Santos,S.L.M.; Castellano,G.; Li,L.M..
Computed tomography (CT) images are routinely used to assess ischemic brain stroke in the acute phase. They can provide important clues about whether to treat the patient by thrombolysis with tissue plasminogen activator. However, in the acute phase, the lesions may be difficult to detect in the images using standard visual analysis. The objective of the present study was to determine if texture analysis techniques applied to CT images of stroke patients could differentiate between normal tissue and affected areas that usually go unperceived under visual analysis. We performed a pilot study in which texture analysis, based...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Texture analysis; Computed tomography; Thrombolysis; Discriminant analysis.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009001100012
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