معیار gini

The distribution of income is an aspect that must be addressed by the central and sectional governments nations due to its importance in search for equity society. Precisely, Gini method main analytical tool measures concentration inhabitants a region over period time. In this regard, 2017 Ecuador managed reduce index better wealth, however, from Covid-19 pandemic economic social inequalities p...

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Principal component analysis: A generalized Gini approach

Journal: :European Journal of Operational Research 2021

A principal component analysis based on the generalized Gini correlation index is proposed (Gini PCA). The PCA generalizes standard variance. It shown, in Gaussian case, that equivalent to PCA. also proven dimensionality reduction matrix, relies city-block distances, robust outliers. Monte Carlo simulations and an application cars data (with outliers) show robustness of provide different interp...

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Six-Year Nitrogen–Water Interaction Shifts the Frequency Distribution and Size Inequality of the First-Order Roots of Fraxinus mandschurica in a Mixed Mature Pinus koraiensis Forest

2017

Cunguo Wang Zhenzhen Geng Zhao Chen Jiandong Li Wei Guo Tian-Hong Zhao Ying Cao Si Shen Daming Jin Mai-He Li

The variation in fine root traits in terms of size inequality at the individual root level can be identified as a strategy for adapting to the drastic changes in soil water and nutrient availabilities. The Gini and Lorenz asymmetry coefficients have been applied to describe the overall degree of size inequality, which, however, are neglected when conventional statistical means are calculated. H...

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Inequality in Maternal Mortality in Iran: An Ecologic Study

2012

Parvin Tajik Saharnaz Nedjat Nozhat Emami Afshar Nasrin Changizi Bahareh Yazdizadeh Arash Azemikhah Sima Aamrolalaei Reza Majdzadeh

BACKGROUND Maternal mortality (MM) is an avoidable death and there is national, international and political commitment to reduce it. The objective of this study is to examine the relation of MM to socioeconomic factors and its inequality in Iran's provinces at an ecologic level. METHODS The overall MM from each province was considered for 3 years from 2004 to 2006. The five independent variab...

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