Dealing with Zeros

Compositional Data Analysis: Theory and Applications

Volumn , Issue , 2011, Pages 43-58

  Martín Ferńandez, Josep Antoni ^a   Palarea Albaladejo, Javier ^b   Olea, Ricardo Antonio ^c  

^a UNIVERSITY OF GIRONA   (Spain)

^b BIOMATHEMATICS AND STATISTICS SCOTLAND   (United Kingdom)

^c U S GEOLOGICAL SURVEY   (United States)

Author keywords

Count zeros a count, number of times an event occurs; Dealing with zeros progress in compositional data analysis, CODA, log ratio methodology; Essential zeros in data sets continuous variables or percentages, as household or time budgets; Hyperspherical approach subject of controversy in CODA literature; Main strategies, for rounded compositional zeros reviewed and compared; Non parametric replacement of rounded zeros; Palarea Albaladejo and Mart n Fern ndez (2008) sequential strategy, algorithm to subsets of samples free of zeros; Parametric modified EM algorithm for rounded zeros; Rounded zeros occurring, where variables being continuous; Scale invariance and subcompositional coherence characterizing CODA

Indexed keywords

EID: 80054691956     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1002/9781119976462.ch4     Document Type: Chapter

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