Results 11 to 20 of about 256,465 (275)

How to use χ2 test correctly—— χ2 tests for the data collected from the three kinds of two dimensional contingency tables without ordinal variables in two directions

open access: yesSichuan jingshen weisheng, 2021
The purpose of this article was to introduce the χ2 test and SAS and R software implementation of three kinds of two-way unordered two-dimensional contingency table data except the four-fold table data.
Hu Chunyan, Hu Liangping
doaj   +1 more source

Releasing Private Contingency Tables

open access: yesThe Journal of Privacy and Confidentiality, 2010
Statistical agencies routinely publish aggregate data in the form of contingency tables. In this paper, we consider the problem of releasing private contingency tables so that the privacy of individual respondents in the table is preserved.
Shubha U. Nabar, Nina Mishra
doaj   +1 more source

Fitting Markov property to genetic sequences

open access: yesLietuvos Matematikos Rinkinys, 2023
In this paper DNA sequents are modelled as discrete-state Markov chains. Statistical data is presented in contingency tables form. The generalized logit model is used to test the first-order Markov property for all coding and non-coding subsequences of ...
Jurgita Židanavičiūtė   +1 more
doaj   +3 more sources

conting: An R Package for Bayesian Analysis of Complete and Incomplete Contingency Tables

open access: yesJournal of Statistical Software, 2014
The aim of this paper is to demonstrate the R package conting for the Bayesian analysis of complete and incomplete contingency tables using hierarchical log-linear models. This package allows a user to identify interactions between categorical factors (
Antony M. Overstall, Ruth King
doaj   +1 more source

Performance Comparison of Independence Tests in Two-Way Contingency Table

open access: yesRevstat Statistical Journal, 2023
Several test statistics are available for testing the independence of categorical variables from two-way contingency tables. A vast majority of published articles used the Pearson’s chi-squared test for such purposes; however, this test statistic may ...
Ebru Ozturk   +3 more
doaj   +1 more source

Graphical Log-linear Models: Fundamental Concepts and Applications [PDF]

open access: yes, 2016
We present a comprehensive study of graphical log-linear models for contingency tables. High dimensional contingency tables arise in many areas such as computational biology, collection of survey and census data and others. Analysis of contingency tables
Gauraha, Niharika
core   +3 more sources

Most Stringent Test of Independence in W× K Contingency Tables for Nominal Data Using Monte Carlo Simulations

open access: yesSustainable Business and Society in Emerging Economies, 2022
Purpose:  This study aims to analyze the performance of tests of independence for nominal data. Tests of independence is one of the most used statistical techniques in econometrics.
Shakeel Shahzad   +2 more
doaj  

Characterization of the Maximum Probability Fixed Marginals R×C Contingency Tables

open access: yesRevstat Statistical Journal, 2020
In this paper operators i[j] and [j]k are defined, whose effects on an r×c contingency table X are to subtract 1 from xij and to add 1 to xkj , respectively, so that the composition i[j]k of the two operators changes the j-th column of the contingency ...
Francisco Requena
doaj   +1 more source

Effects of Systematic Changes in Commodity Arrangement on the Satisfaction of Supermarket Customers

open access: yesKvalita Inovácia Prosperita, 2021
Purpose: The paper investigates if relocation of goods at supermarkets, practised to boost sales, bothers customers and improves financial results of the stores.
Josef Tošenovský   +2 more
doaj   +1 more source

Asymmetry Model Using Marginal Ridits for Ordinal Square Contingency Tables

open access: yesAustrian Journal of Statistics, 2022
This study proposes a new marginal asymmetry model which can infer the relation between marginal ridits of row and column variables for ordinal square contingency tables. When the marginal homogeneity model does not hold, we will apply marginal asymmetry
Shuji Ando
doaj   +3 more sources

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