Results 31 to 40 of about 300,687 (184)

Sequential Regression: A Neodescriptive Approach to Multicollinearity [PDF]

open access: yes
Classical regression analysis uses partial coefficients to measure the influences of some variables (regressors) on another variable (regressand). However, a descriptive point of view shows that these coefficients are very bad measures of influence ...
Norman Fickel
core   +6 more sources

Decreasing Multicollinearity [PDF]

open access: yesSociological Methods & Research, 1979
When the multicollinearity among the independent variables in a regression model is due to the high correlations of a multiplicative function with its constituent variables, the multicollinearity can be greatly reduced by centering these variables around minimizing constants before forming the multiplicative function.
Kent W. Smith, M.S. Sasaki
openaire   +1 more source

On Testing Sample Selection Bias under the Multicollinearity Problem [PDF]

open access: yes, 2006
This paper examines and compares the finite sample performance of the existing tests for sample selection bias, especially under the multi-collinearity problem pointed out by Nawata (1993).

core   +2 more sources

Evaluating the Effects of Climate and Environmental Factors on Under-5 Children Malaria Spatial Distribution Using Generalized Additive Models (GAMs)

open access: yesJournal of Epidemiology and Global Health, 2020
Although malaria burden has declined globally following scale up of intervention, the disease has remained a leading cause of hospitalization and deaths among children aged under-5 years in Nigeria.
Chigozie Louisa Jane Ugwu   +1 more
doaj   +1 more source

PERBANDINGAN REGRESI KOMPONEN UTAMA DAN ROBPCA DALAM MENGATASI MULTIKOLINEARITAS DAN PENCILAN PADA REGRESI LINEAR BERGANDA

open access: yesE-Jurnal Matematika, 2014
Multiple linear regression analysis with a lot of independent variable always makes many problems because there is a relationship between two or more independent variables.
NI WAYAN YULIANI   +2 more
doaj   +1 more source

El problema de un tamaño muestral pequeño en la regresión lineal: Micronumerosidad

open access: yesRect@, 2016
: The econometrician Arthur Goldberg introduced the notion of micronumerosity motivating that classical Econometrics textbooks used to explain the problem of multicollinearity but nothing is explain about the analogous problem of estimating using an ...
Salmeron, Román, Blanco, Víctor
doaj  

Robust Liu Estimator Used to Combat Some Challenges in Partially Linear Regression Model by Improving LTS Algorithm Using Semidefinite Programming

open access: yesMathematics
Outliers are a common problem in applied statistics, together with multicollinearity. In this paper, robust Liu estimators are introduced into a partially linear model to combat the presence of multicollinearity and outlier challenges when the error ...
Waleed B. Altukhaes   +2 more
doaj   +1 more source

Multicollinearity: Effects, Symptoms, and Remedies [PDF]

open access: yesJournal of the Northeastern Agricultural Economics Council, 1978
Multicollinearity is one of several problems confronting researchers using regression analysis. This paper examines the regression model when the assumption of independence among the independent variables is violated. The basic properties of the least squares approach are examined, the concept of multicollinearity and its consequences on the least ...
Willis, Cleve E., Perlack, Robert D.
openaire   +2 more sources

Mitigating Multicollinearity in Regression: A Study on Improved Ridge Estimators

open access: yesMathematics
Multicollinearity, a critical issue in regression analysis that can severely compromise the stability and accuracy of parameter estimates, arises when two or more variables exhibit correlation with each other.
Nadeem Akhtar   +2 more
doaj   +1 more source

Relações genotípicas entre componentes da resistência pós-colheita em tomate Cereja e Salada Genotypic relationships between components of postharvest resistance of Cherry and Salad tomato

open access: yesActa Agronómica, 2009
Este trabalho objetivou avaliar a necessidade de realizar análise de trilha individualizada para tomates tipo Salada (L. esculentum) e Cereja (L. esculentum var.
Fábio Moreira Sobreira   +5 more
doaj  

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