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We propose a class of assortativity coefficients that capture the assortative characteristics and structure of weighted and directed networks more precisely. The vertex-to-vertex strength correlation is used as an example, but the proposed measure can be applied to any pair of vertex-specific features. The effectiveness of the proposed measure is assessed through extensive simulations based on prevalent random network models in comparison with existing assortativity measures. In application to World Input\u2013Output Networks, the new measures reveal interesting insights that would not be obtained by using existing ones. An implementation is publicly available in a R package wdnet.<\/jats:p>","DOI":"10.1093\/comnet\/cnab017","type":"journal-article","created":{"date-parts":[[2021,4,28]],"date-time":"2021-04-28T19:55:00Z","timestamp":1619639700000},"source":"Crossref","is-referenced-by-count":24,"title":["Assortativity measures for weighted and directed networks"],"prefix":"10.1093","volume":"9","author":[{"given":"Yelie","family":"Yuan","sequence":"first","affiliation":[{"name":"Department of Statistics, University of Connecticut, Storrs, CT 06269, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun","family":"Yan","sequence":"additional","affiliation":[{"name":"Department of Statistics, University of Connecticut, Storrs, CT 06269, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8211-5930","authenticated-orcid":false,"given":"Panpan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA 19104, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2021,5,27]]},"reference":[{"key":"2021080511131915300_B1","doi-asserted-by":"crossref","first-page":"208701","DOI":"10.1103\/PhysRevLett.89.208701","article-title":"Assortative mixing in networks","volume":"89","author":"Newman,","year":"2002","journal-title":"Phys. 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