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Dissertations / Theses on the topic 'Table contingence'

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Published: 15 September 2021
Last updated: 30 July 2025

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1

Chah, Said. "Nouvelles techniques de codage d'association et de classification." Paris 6, 1986. http://www.theses.fr/1986PA066097.

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La première partie de cette thèse est consacrée au problème de la recherche des partitions de e (ensemble à classifier) s'ajustant le mieux, au sens du critère de W. F. De la Vega, a la préordonnance p(s) induite sur e par un indice de similarité s. Dans la deuxième partie, on présente les bases d'une nouvelle théorie en classification automatique contenant la théorie classique des préordonnances comme cas particulier. Dans la troisième partie, on présente les principes de la théorie des "comparaisons par triplets" basée sur une nouvelle structure dite "triordonnance". La quatrième partie étud
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2

Jmel, Saïd. "Applications des modèles graphiques au choix de variables et à l'analyse des interactions dans une table de contingence multiple." Toulouse 3, 1992. http://www.theses.fr/1992TOU30091.

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On presente quelques aspects de l'apport des modeles graphiques en analyse des donnees multidimensionnelles. Deux sujets ont ete abordes. Le premier concerne la selection des variables. On propose une nouvelle methode basee sur un type particulier de modeles graphiques. On donne deux applications de cette methode: la premiere en analyse en composantes principales et la seconde en analyse loglineaire. Le second sujet traite de la modelisation des interactions dans une table de contingence multiple. On montre comment l'analyse factorielle des correspondances et les modeles d'association ligne co
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3

Brink, Anton Meredith. "Bayesian analysis of contingency tables." Thesis, Imperial College London, 1997. http://hdl.handle.net/10044/1/8948.

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4

Nguyen, Van Dominique. "Plausibilité et applications aux tables de contingence." Toulouse 3, 1986. http://www.theses.fr/1986TOU30100.

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On rappelle la définition et les propriétés des systèmes de b-lods (chapitre 1) et de l'estimation exacte (chapitre 2) afin d'introduire la plausibilité comme une des généralisations de l'estimation exacte dans le cadre des systèmes de b-lods. Afin d'appliquer les résultats de la plausibilité conditionnelle à l'analyse des tables de contingence, on est amené à définir la classe des hypothèses log-linéaires homogènes (chapitre 3). On donne en exemple les programmes de calcul de l'estimation et de la valeur du test de rapport de plausibilité sous certaines hypothèses. Un niveau approximatif de c
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5

Nguyên, Dominique Van. "Plausibilité et applications aux tables de contingence." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb376000429.

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6

Samusenko, Pavel. "Nonparametric criteria for sparse contingency tables." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130218_142205-74244.

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In the dissertation, the problem of nonparametric testing for sparse contingency tables is addressed. Statistical inference problems caused by sparsity of contingency tables are widely discussed in the literature. Traditionally, the expected (under null the hypothesis) frequency is required to exceed 5 in almost all cells of the contingency table. If this condition is violated, the χ2 approximations of goodness of fit statistics may be inaccurate and the table is said to be sparse . Several techniques have been proposed to tackle the problem: exact tests, alternative approximations, parametric
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7

Colas, Jo Ann. "Partition of the Chi-Squared Statistic in a Contingency Table." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/30352.

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The Pearson statistic, a well-known goodness-of fit test in the analysis of contingency tables, gives little guidance as to why a null hypothesis is rejected. One approach to determine the source(s) of deviation from the null is the decomposition of a chi-squared statistic. This allows writing the statistic as the sum of independent chi-squared statistics. First, three major types of contingency tables and the usual chi-squared tests are reviewed. Three types of decompositions are presented and applied: one based on the partition of the contingency table into independent subtables; one derived
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8

Forster, Jonathan. "Models and marginal densities for multiway contingency tables." Thesis, University of Nottingham, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334557.

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9

Michaelides, Danius Takis. "Exact tests via complete enumeration : a distributed computing approach." Thesis, University of Southampton, 1997. https://eprints.soton.ac.uk/250749/.

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The analysis of categorical data often leads to the analysis of a contingency table. For large samples, asymptotic approximations are sufficient when calculating p-values, but for small samples the tests can be unreliable. In these situations an exact test should be considered. This bases the test on the exact distribution of the test statistic. Sampling techniques can be used to estimate the distribution. Alternatively, the distribution can be found by complete enumeration. A new algorithm is developed that enables a model to be defined by a model matrix, and all tables that satisfy the model
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10

Yu, Yuan. "Tests of Independence in a Single 2x2 Contingency Table with Random Margins." Digital WPI, 2014. https://digitalcommons.wpi.edu/etd-theses/625.

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In analysis of the contingency tables, the Fisher's exact test is a very important statistical significant test that is commonly used to test independence between the two variables. However, the Fisher' s exact test is based upon the assumption of the fixed margins. That is, the Fisher's exact test uses information beyond the table so that it is conservative. To solve this problem, we allow the margins to be random. This means that instead of fitting the count data to the hypergeometric distribution as in the Fisher's exact test, we model the margins and one cell using multinomial distribution
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11

Ivanchuk, M. A. "Statistical analysis of the contingency tables in medical researches." Thesis, БДМУ, 2021. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/18846.

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12

Khelladi, Mahieddine. "Analyse des tables de contingence : étude du problème de la contractilité." Grenoble 2, 1993. http://www.theses.fr/1993GRE21050.

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Dans une table de contingence, l'elimination d'une ou plusieurs variables se fait en sommant le contenu des cases (effectif ou frequence) sur toutes ou certaines modalites de(s) variable(s) a eliminer, on obtient ainsi une table de contingence marginale ou contractee des variables restantes. Cette operation s'appelle contracter une table. Nous etudions en premier lieu, l'effet de contraction sur ce certaines structures d'association, le rapport des cotes et les parametres d'un modele log-lineaire. On distingue alors trois types de contractilite: la contractilite forte, la contractilite stricte
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13

Meyer, David, Achim Zeileis, and Kurt Hornik. "The Strucplot Framework: Visualizing Multi-way Contingency Tables with vcd." Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 2005. http://epub.wu.ac.at/480/1/document.pdf.

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This paper describes the `strucplot' framework for the visualization of multi-way contingency tables. Strucplot displays include hierarchical conditional plots such as mosaic, association, and sieve plots, and can be combined into more complex, specialized plots for visualizing conditional independence, GLMs, and the results of independence tests. The framework's modular design allows flexible customization of the plots' graphical appearance, including shading, labeling, spacing, and legend, by means of graphical appearance control (`grapcon') functions. The framework is provided by the R pack
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14

Hornik, Kurt, Achim Zeileis, and David Meyer. "The Strucplot Framework: Visualizing Multi-way Contingency Tables with vcd." American Statistical Association, 2006. http://epub.wu.ac.at/3984/1/strucplot.pdf.

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This paper describes the "strucplot" framework for the visualization of multi-way contingency tables. Strucplot displays include hierarchical conditional plots such as mosaic, association, and sieve plots, and can be combined into more complex, specialized plots for visualizing conditional independence, GLMs, and the results of independence tests. The framework's modular design allows flexible customization of the plots' graphical appearance, including shading, labeling, spacing, and legend, by means of "graphical appearance control" functions. The framework is provided by the R package
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15

Ait, Sidi Allal Moulay Lahcen. "Contributions à l'étude des modèles d'association dans l'analyse des tables de contingence." Toulouse 3, 1996. http://www.theses.fr/1996TOU30011.

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Dans ce travail, nous nous sommes interesses a deux problemes relatifs au modele d'association: la distribution asymptotique des estimateurs maximum de vraisemblance (emv) et le choix de la dimension. La premiere partie est consacree a la determination de la matrice des co variances asymptotiques des emv dans le modele d'association, ainsi que dans d'autres modeles voisins. La deuxieme partie passe en revue differents criteres de choix de la dimension optimale d'un modele. Nous nous sommes plus particulierement interesses dans cette partie a deux criteres relativement recents icomp et icompifi
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16

Johnson, Justin Scott Escobar Martha Cecilia. "Initially held hypothesis does not affect encoding of event frequencies in contingency based causal judgment." Auburn, Ala., 2009. http://hdl.handle.net/10415/1948.

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17

Kim, Seoung Bum. "Data Mining in Tree-Based Models and Large-Scale Contingency Tables." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6825.

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This thesis is composed of two parts. The first part pertains to tree-based models. The second part deals with multiple testing in large-scale contingency tables. Tree-based models have gained enormous popularity in statistical modeling and data mining. We propose a novel tree-pruning algorithm called frontier-based tree-pruning algorithm (FBP). The new method has an order of computational complexity comparable to cost-complexity pruning (CCP). Regarding tree pruning, it provides a full spectrum of information. Numerical study on real data sets reveals a surprise: in the complexity-penalizatio
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18

Khedri, Shiler. "Markov chain Monte Carlo methods for exact tests in contingency tables." Thesis, Durham University, 2012. http://etheses.dur.ac.uk/5579/.

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This thesis is mainly concerned with conditional inference for contingency tables, where the MCMC method is used to take a sample of the conditional distribution. One of the most common models to be investigated in contingency tables is the independence model. Classic test statistics for testing the independence hypothesis, Pearson and likelihood chi-square statistics rely on large sample distributions. The large sample distribution does not provide a good approximation when the sample size is small. The Fisher exact test is an alternative method which enables us to compute the exact p-value f
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19

Messatfa, Hammou. "Unification relationnelle des criteres et structures optimales des tables de contingences." Paris 6, 1990. http://www.theses.fr/1990PA066241.

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La premiere partie de notre these developpe une approche unificatrice et interpretative de plusieurs mesures d'association proposees dans la litterature. Nous utilisons les comparaisons par paires et quelques techniques de normalisation pour mettre en evidence les relations entre ces differentes mesures. Dans une deuxieme partie, nous abordons des problemes de structures optimales de tables de contingence: 1) nous montrons comment approximer la somme des carres d'une table de contingence a marge fixee. Nous examinons quelques approches deja etudiees et nous proposons: 1) une heuristique basee
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20

Ye, Ping. "Tests of symmetry with ordered alternatives in three-dimensional contingency tables /." Available to subscribers only, 2008. http://proquest.umi.com/pqdweb?did=1594480501&sid=17&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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21

Mesbah, Mounir. "Estimation et tests dans les tables de contingence mixtes en présence d'erreurs de mesure." Paris 5, 1992. http://www.theses.fr/1992PA05S015.

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Le chapitre 1 de cette thèse porte sur la construction des distributions conditionnellement gaussiennes. Dans le chapitre 2, nous présentons des résultats sur l'effet des erreurs de mesures sur les estimations et les tests dans les tables de contingence mixtes. Nous montrons qu'en présence de certaines indépendances conditionnelles particulières, l'association entre variables est soit toujours diminuée, soit toujours augmentée. Néanmoins dans certains cas les tests d'indépendance restent de niveau correct. Leur puissance est, pour certains types de modèles, toujours diminuée. Nous caractérison
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22

Yenigun, Deniz C. "A Test of Independence in Two-Way Contingency Tables Based on Maximal Correlation." Bowling Green State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1182286318.

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23

Pan, Xuemei. "Factors influencing the mixture index of model fit in contingency tables showing indenpendence." College Park, Md. : University of Maryland, 2006. http://hdl.handle.net/1903/4101.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2006.<br>Thesis research directed by: Measurement, Statistics and Evaluation. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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24

Espendiller, Michael [Verfasser], Maria [Akademischer Betreuer] Kateri, and Udo [Akademischer Betreuer] Kamps. "Association in contingency tables : an informationtheoretic approach / Michael Espendiller ; Maria Kateri, Udo Kamps." Aachen : Universitätsbibliothek der RWTH Aachen, 2017. http://d-nb.info/1158599560/34.

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25

Bhatta, Dilli. "A Bayesian Test of Independence for Two-way Contingency Tables Under Cluster Sampling." Digital WPI, 2013. https://digitalcommons.wpi.edu/etd-dissertations/128.

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We consider a Bayesian approach to the study of independence in a two-way contingency table obtained from a two-stage cluster sampling design. We study the association between two categorical variables when (a) there are no covariates and (b) there are covariates at both unit and cluster levels. Our main idea for the Bayesian test of independence is to convert the cluster sample into an equivalent simple random sample which provides a surrogate of the original sample. Then, this surrogate sample is used to compute the Bayes factor to make an inference about independence. For the test of indepe
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26

Basak, Tapati. "A Geometry-Based Multiple Testing Correction for Contingency Tables by Truncated Normal Distribution." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/264648.

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京都大学<br>新制・課程博士<br>博士(医学)<br>甲第23367号<br>医博第4736号<br>新制||医||1051(附属図書館)<br>京都大学大学院医学研究科医学専攻<br>(主査)教授 森田 智視, 教授 川上 浩司, 教授 佐藤 俊哉<br>学位規則第4条第1項該当<br>Doctor of Medical Science<br>Kyoto University<br>DFAM
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27

Ganajová, Michaela. "Aplikace korespondenční analýzy v programu MS Excel." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-15778.

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The aim of the diploma thesis was to create independently an application, automating a correspondence analysis calculation using MS Excel and taking advantage of VBA programming language. The application was then used to analyse Slovak banking sector. The created application is based on macro sets which can be split up to two parts. The first part produces a contingency table and converts it into a format usable in the second part. Then there is executed the Correspondence Analysis calculation itself. Supplement Matrix is being used, that allows to discharge functions from matrix and linear al
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28

Amiri, Saeid. "On the Application of the Bootstrap : Coefficient of Variation, Contingency Table, Information Theory and Ranked Set Sampling." Doctoral thesis, Uppsala universitet, Matematiska institutionen, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-159206.

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This thesis deals with the bootstrap method. Three decades after the seminal paper by Bradly Efron, still the horizons of this method need more exploration. The research presented herein has stepped into different fields of statistics where the bootstrap method can be utilized as a fundamental statistical tool in almost any application. The thesis considers various statistical problems, which is explained briefly below. Bootstrap method: A comparison of the parametric and the nonparametric bootstrap of variance is presented. The bootstrap of ranked set sampling is dealt with, as well as the we
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Xi, Jing. "Polytopes Arising from Binary Multi-way Contingency Tables and Characteristic Imsets for Bayesian Networks." UKnowledge, 2013. http://uknowledge.uky.edu/statistics_etds/5.

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The main theme of this dissertation is the study of polytopes arising from binary multi-way contingency tables and characteristic imsets for Bayesian networks. Firstly, we study on three-way tables whose entries are independent Bernoulli ran- dom variables with canonical parameters under no three-way interaction generalized linear models. Here, we use the sequential importance sampling (SIS) method with the conditional Poisson (CP) distribution to sample binary three-way tables with the sufficient statistics, i.e., all two-way marginal sums, fixed. Compared with Monte Carlo Markov Chain (MCMC)
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30

Tadepalli, Sriram Satish. "Schemas of Clustering." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/26261.

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Data mining techniques, such as clustering, have become a mainstay in many applications such as bioinformatics, geographic information systems, and marketing. Over the last decade, due to new demands posed by these applications, clustering techniques have been significantly adapted and extended. One such extension is the idea of finding clusters in a dataset that preserve information about some auxiliary variable. These approaches tend to guide the clustering algorithms that are traditionally unsupervised learning techniques with the background knowledge of the auxiliary variable. The auxiliar
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31

Kraus, Katrin. "On the Measurement of Model Fit for Sparse Categorical Data." Doctoral thesis, Uppsala universitet, Statistiska institutionen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-173768.

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This thesis consists of four papers that deal with several aspects of the measurement of model fit for categorical data. In all papers, special attention is paid to situations with sparse data. The first paper concerns the computational burden of calculating Pearson's goodness-of-fit statistic for situations where many response patterns have observed frequencies that equal zero. A simple solution is presented that allows for the computation of the total value of Pearson's goodness-of-fit statistic when the expected frequencies of response patterns with observed frequencies of zero are unknown.
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32

Ma, Baofu. "Analyzing the Combination of Polymorphisms Associating with Antidepressant Response by Exact Conditional Test." Digital Archive @ GSU, 2005. http://digitalarchive.gsu.edu/math_theses/2.

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Genetic factors have been shown to be involved in etiology of a poor response to the antidepressant treatment with sufficient dosage and duration. Our goal was to identify the role of polymorphisms in the poor response to the treatment. To this end, 5 functional polymorphisms in 109 patients diagnosed with unipolar, major depressive disorder are analyzed. Due to the small sample size, exact conditional tests are utilized to analyze the contingency table. The data analysis involves: (1) Exact test for conditional independence in a high dimensional contingency table; (2) Marginal independence te
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33

Lee, Juyoun Slavkovic Aleksandra B. "Sampling contingency tables given sets of marginals and/or conditionals in the context of statistical disclosure limitation." [University Park, Pa.] : Pennsylvania State University, 2009. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-4572/index.html.

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34

Popovic, Ray. "Parameter estimation error: a cautionary tale in computational finance." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34731.

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We quantify the effects on contingent claim valuation of using an estimator for the volatility of a geometric Brownian motion (GBM) process. That is, we show what difficulties can arise when failing to account for estimation risk. Our working problem uses a direct estimator of volatility based on the sample standard deviation of increments from the underlying Brownian motion. After substituting into the GBM the direct volatility estimator for the true, but unknown, value of the parameter sigma, we derive the resulting marginal distribution of the approximated GBM. This allows us to derive post
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35

Zeileis, Achim, David Meyer, and Kurt Hornik. "Residual-based shadings for visualizing (conditional) independence." Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 2005. http://epub.wu.ac.at/1122/1/document.pdf.

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Residual-based shadings for enhancing mosaic and association plots to visualize independence models for contingency tables are extended in two directions: (a) perceptually uniform HCL colors are used and (b) the result of an associated significance test is coded by the appearance of color in the visualization. For obtaining (a), a general strategy for deriving diverging palettes in the perceptually-based HCL space is suggested. As for (b), cut offs that control the appearance of color are computed in a data-driven way based on the conditional permutation distribution of maximum-type test stati
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36

Pereira, Gislaine Rocha. "Uma revisão sobre o uso analítico de dados provenientes de amostras com estruturas complexas." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/11/11134/tde-28112016-144856/.

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Neste trabalho foi realizada uma revisão bibliográfica acerca das metodologias encontradas na literatura de como são aplicados os métodos para o uso analítico de dados provenientes de pesquisas que envolvem esquemas amostrais complexos. Objetivou-se mostrar e discutir alguns estudos que avaliam o impacto de ignorar o plano amostral na análise dos dados. Foi feito também um levantamento de artigos com o objetivo de fazer um estudo de trabalhos publicados em jornais, revistas ou periódicos, cujos assuntos abordados tratam da incorporação da estrutura complexa da amostra na análise. Essa revisão
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Whistler, James W. "ANALYSIS OF EMBRYO SCORING AND COMPARISON OF CLINIC PERFORMANCE IN IN-VITRO FERTILIZATION." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1376.

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Clinical Assisted Reproductive Technology (ART) practices seek to make improvements in embryo quality and resultant procedural success rates. There is a significant variance in live birth rates among clinics nationwide. The goal of this thesis is make comparisons of embryo quality among clinics and understand these differences. This analysis focuses on the stage between egg retrieval and embryo transfer. Because the currently accepted embryo scoring methods are not directly proportional to performance, a new scoring methodology is proposed and applied. Data provided by the Society for Assisted
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Mullen, Jerry D. (Jerry Davis). "A Comparison of Some Continuity Corrections for the Chi-Squared Test in 3 x 3, 3 x 4, and 3 x 5 Tables." Thesis, North Texas State University, 1987. https://digital.library.unt.edu/ark:/67531/metadc331001/.

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This study was designed to determine whether chis-quared based tests for independence give reliable estimates (as compared to the exact values provided by Fisher's exact probabilities test) of the probability of a relationship between the variables in 3 X 3, 3 X 4 , and 3 X 5 contingency tables when the sample size is 10, 20, or 30. In addition to the classical (uncorrected) chi-squared test, four methods for continuity correction were compared to Fisher's exact probabilities test. The four methods were Yates' correction, two corrections attributed to Cochran, and Mantel's correction. The stud
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Pemmanaboina, Rajashekar. "Assessing Crash Occurrence On Urban Freeways Using Static And Dynamic Factors By Applying A System Of Interrelated Equations." Master's thesis, University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2617.

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Traffic crashes have been identified as one of the main causes of death in the US, making road safety a high priority issue that needs urgent attention. Recognizing the fact that more and effective research has to be done in this area, this thesis aims mainly at developing different statistical models related to the road safety. The thesis includes three main sections: 1) overall crash frequency analysis using negative binomial models, 2) seemingly unrelated negative binomial (SUNB) models for different categories of crashes divided based on type of crash, or condition in which they occur, 3)
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40

Šulc, Zdeněk. "Metody analýzy vícerozměrných kontingenčních tabulek." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-114292.

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This thesis occupies with a relationship of two significant methods of analyzing multivariate contingency tables, namely correspondence analysis and loglinear models. The thesis is divided into three parts. The first one is dedicated to basic terms of categorical data analysis, mainly to contingency tables and their distributions. Primarily, the emphasis is placed on their multidimensional form. The second part presents tools and techniques of both methods in a scope needed for their practical use and interpretation of their results. A practical application of both methods is included in the t
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41

Cafourková, Magdalena. "Zkoumání závislosti materiální deprivace domácností ČR na vybraných faktorech." Master's thesis, Vysoká škola ekonomická v Praze, 2012. http://www.nusl.cz/ntk/nusl-165094.

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The aim of this thesis is to analyse the material deprivation of the households with regard to the selected indicators, i.e. the costs that the household spends on housing, a region where the household is located, the number of the members and the dependent children in the household, age and sex of a head of the household, and economic activity and education level of the members of the household. The thesis aims not only to prove the dependence among the selected indicators but also to quantify this dependence by using the odds ratio. The individual effect of all variables was proven except of
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42

Steinfeld, Uwe H. "Draftsmans displays for contingency tables using a full-screen, scrollable APL2 spreadsheet input/output editor with application to the PERSEREC database of Special Background Investigation." Thesis, Monterey, California. Naval Postgraduate School, 1990. http://hdl.handle.net/10945/37552.

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Approved for public release, distribution is unlimited.<br>A full-screen, scrollable spreadsheet-like editor written in the APL2 language is described for inputting, examining and outputting data. Mixed numeric and character arrays can be read into or read out to formatted DOS files (ASCII) or comma delimited DOS files. Alternatively a bulk mode input facility allows for rapid direct data entry, or data can be examined and edited cell-by-cell in the usual way. Columns, rows or blocks of data can be highlighted in a chosen color, shadowed, moved or copied. In addition APL functions entered on t
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Vlach, Petr. "Grafický podsystém v prostředí internetového prohlížeče." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2008. http://www.nusl.cz/ntk/nusl-235437.

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This master's thesis, divided into two sections, compares in part one existing (non-)commercial systems for OLAP presentation using contingency table or graph. The main focus is put on a graph. Results received from my observations in part one are used for implementing a graphic subsystem within internet browser's environment. User friendly interface and good arrangement of displayed data are the most important tasks.
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44

Konrádová, Lucie. "Korespondenční analýza." Master's thesis, Vysoká škola ekonomická v Praze, 2006. http://www.nusl.cz/ntk/nusl-10408.

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The aim of this thesis is to introduce statistical method called Correspondence analysis as a strong instrument for exploratory data analysis. The main purpose is to understand how to interpret the correspondence map, the graphical output of this method, correctly. The method is presented both in its simple version, and its extension to multivariate data. Usage of method is demonstrated on data of non-financial subjects of Czech republic, which are entered in the register of economic subjects.
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45

Mašková, Jana. "Analýza dat ze závislých výběrů ve výzkumu trhu." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-19243.

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There are surveys carried out repeatedly on the same set of units. In connection with such research, we are talking about the dependent samples. The aim and the contribution of this diploma thesis is a summary of available methods for analyzing data from dependent samples for both continuous and discrete variables. The Czech literature has been devoted to this topic only marginally. The theoretical part is divided into two main parts for two waves and for more waves of exploration, which are further divided according to the type of reference variable. The third part is devoted to the applicati
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46

Chen, Dandan. "Amended Estimators of Several Ratios for Categorical Data." Digital Commons @ East Tennessee State University, 2006. https://dc.etsu.edu/etd/2218.

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Point estimation of several association parameters in categorical data are presented. Typically, a constant is added to the frequency counts before the association measure is computed. We will study the accuracy of these adjusted point estimators based on frequentist and Bayesian methods respectively. In particular, amended estimators for the ratio of independent Poisson rates, relative risk, odds ratio, and the ratio of marginal binomial proportions will be examined in terms of bias and mean squared error.
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47

Lamoureux-Bélair, Guillaume. "L’incidence du rendement sur la gestion du risque au sein de l’industrie des fonds communs de placement." Mémoire, Université de Sherbrooke, 2014. http://hdl.handle.net/11143/5452.

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D’un point de vue théorique, la délégation de la gestion au sein de l’industrie des fonds communs de placement présente un conflit d’intérêt important. Les investisseurs désirent maximiser leur rendement ajusté pour leur risque, tandis que les gestionnaires sont davantage motivés par leurs propres intérêts personnels. Le présent mémoire s’intéresse à l’incidence du rendement d’un gestionnaire sur son comportement de prise de risque. Brown al. (1996) font partie des premiers auteurs à étudier ce phénomène, qu’ils appellent l’effet tournoi. L’hypothèse de tournoi amené par ceux-ci stipule que le
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48

Fonseca, Cristina Moreira. "Contingência e contigüidade no responder de ratos submetidos a esquemas de razão e intervalo variáveis." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/47/47132/tde-25092006-005520/.

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O presente estudo é formado por dois experimentos (Experimento 1 e Experimento 2) que empregaram procedimento de atraso de reforço não sinalizado non-resetting [esquema tandem em que o segundo componente ocorre em tempo fixo (FT)]. Os experimentos tiveram como objetivo geral manipular experimentalmente relações de contingência e contigüidade utilizando diferentes esquemas de reforço (esquema dependente de resposta, esquema dependente da resposta com liberação atrasada do reforço e esquema independente de resposta). Mais especificamente, os experimentos tiveram como objetivo verificar os efeito
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49

Kocáb, Jan. "Statistické usuzování v analýze kategoriálních dat." Master's thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-76171.

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This thesis introduces statistical methods for categorical data. These methods are especially used in social sciences such as sociology, psychology and political science, but their importance has increased also in medical and technical sciences. In the first part there is mentioned statistical inference for a proportion. Here is written about classical, exact and Bayesian methods for estimating and hypothesis testing. If we have a large sample then we can approximate exact distribution by normal distribution but if we have a small sample cannot use this approximation and it is necessary to use
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50

Židanavičiūtė, Jurgita. "Kategorinių požymių priklausomybių struktūros statistinė analizė ir jos taikymas genetikoje." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100303_113252-41877.

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Disertacijoje nagrinėjami kai kurie kategorinių požymių statistinės analizės uždaviniai – ryšių struktūros bei modelio parinkimo ir jo parametrų įvertinimo uždaviniai. Disertacijos tikslas – pasiūlyti ryšių struktūros tarp kategorinių požymių įvertinimo metodą tuo atveju, kai turime didelės dimensijos duomenų rinkinius ir išsklaidytas dažnių lenteles, t. y. kai daugumoje dažnių lentelės ląstelių yra mažas stebinių skaičius arba jos yra tuščios. Ši situacija iliustruojama DNR genetinių sekų statistine analize. Disertaciją sudaro įvadas, trys pagrindiniai skyriai, išvados, naudotos literatūros i
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