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Mattias Villani
Professor of Statistics at Stockholm University
Public
Statistical distributions
Edited
Mar 15
Fork of Binomial distribution
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betabinomPDF = function(x, n, alpha, beta){
return jstat.combination(n,x)*jstat.betafn(x+alpha, n - x + beta)/jstat.betafn(alpha, beta)
}
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n = params[0]
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alpha = params[1]
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mean = n*alpha/(alpha + beta)
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variance = n*alpha*beta*(alpha+beta+n)/((alpha+beta)**2*(alpha + beta + 1))
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cdf = d3.sum(pdfdata.filter(d => d.x <= quantile).map(d => d.pdf))
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