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Continuous binomial distribution

In probability theory and statistics, the continuous binomial distribution (also called the cobin distribution) is a family of continuous probability distributions on the unit interval that belongs to an exponential dispersion family. It was introduced as a response distribution for generalized linear models for continuous proportional data, proposed as…

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Mean
B ′ ( θ ) = { e θ e θ − 1 − 1 θ , θ ≠ 0 , 1 2 , θ = 0 , {\displaystyle B'(\theta )={\begin{cases}{\frac {e^{\theta }}{e^{\theta }-1}}-{\frac {1}{\theta }},&\theta \neq 0,\\{\fra…
Parameters
θ ∈ R {\displaystyle \theta \in \mathbb {R} } (natural parameter) λ ∈ { 1 , 2 , 3 , … } {\displaystyle \lambda \in \{1,2,3,\dots \}} (inverse dispersion)
PDF
f ( x ; θ , λ ) = h ( x ; λ ) exp ( λ θ x − λ B ( θ ) ) , 0 ≤ x ≤ 1 , {\displaystyle f(x;\theta ,\lambda )=h(x;\lambda )\exp \!{\big (}\lambda \theta x-\lambda B(\theta ){\big )…
Support
x ∈ [ 0 , 1 ] {\displaystyle x\in [0,1]} if λ = 1 {\displaystyle \lambda =1} , x ∈ ( 0 , 1 ) {\displaystyle x\in (0,1)} if λ ≥ 2 {\displaystyle \lambda \geq 2}
Variance
1 λ B ″ ( θ ) = { 1 λ ( 1 θ 2 − e θ ( e θ − 1 ) 2 ) , θ ≠ 0 , 1 12 λ , θ = 0. {\displaystyle {\frac {1}{\lambda }}B''(\theta )={\begin{cases}{\frac {1}{\lambda }}\left({\frac {1…

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Continuous binomial distribution

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Continuous binomial distribution

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Mean · 1
Continuous binomial distribution → B ′ ( θ ) = { e θ e θ − 1 − 1 θ , θ ≠ 0 , 1 2 , θ = 0 , {\displaystyle B'(\theta )={\begin{cases}{\frac {e^{\theta }}{e^{\theta }-1}}-{\frac {1}{\theta }},&\theta \neq 0,\\{\fra…
Parameters · 1
Continuous binomial distribution → θ ∈ R {\displaystyle \theta \in \mathbb {R} } (natural parameter) λ ∈ { 1 , 2 , 3 , … } {\displaystyle \lambda \in \{1,2,3,\dots \}} (inverse dispersion)
PDF · 1
Continuous binomial distribution → f ( x ; θ , λ ) = h ( x ; λ ) exp ( λ θ x − λ B ( θ ) ) , 0 ≤ x ≤ 1 , {\displaystyle f(x;\theta ,\lambda )=h(x;\lambda )\exp \!{\big (}\lambda \theta x-\lambda B(\theta ){\big )…
Support · 1
Continuous binomial distribution → x ∈ [ 0 , 1 ] {\displaystyle x\in [0,1]} if λ = 1 {\displaystyle \lambda =1} , x ∈ ( 0 , 1 ) {\displaystyle x\in (0,1)} if λ ≥ 2 {\displaystyle \lambda \geq 2}
Variance · 1
Continuous binomial distribution → 1 λ B ″ ( θ ) = { 1 λ ( 1 θ 2 − e θ ( e θ − 1 ) 2 ) , θ ≠ 0 , 1 12 λ , θ = 0. {\displaystyle {\frac {1}{\lambda }}B''(\theta )={\begin{cases}{\frac {1}{\lambda }}\left({\frac {1…

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displaystyle lambda distribution theta continuous frac -1 mean cobin neq natural parameter dispersion random dots begin cases end max variance

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SubjectPredicateObjectConfidenceSrc
Continuous binomial distributionMeanB ′ ( θ ) = { e θ e θ − 1 − 1 θ , θ ≠ 0 , 1 2 , θ = 0 , {\displaystyle B'(\theta )={\begin{cases}{\frac {e^{\theta }}{e^{\theta }-1}}-{\frac {1}{\theta }},&\theta \neq 0,\\{\fra…1.00infobox
Continuous binomial distributionParametersθ ∈ R {\displaystyle \theta \in \mathbb {R} } (natural parameter) λ ∈ { 1 , 2 , 3 , … } {\displaystyle \lambda \in \{1,2,3,\dots \}} (inverse dispersion)1.00infobox
Continuous binomial distributionPDFf ( x ; θ , λ ) = h ( x ; λ ) exp ( λ θ x − λ B ( θ ) ) , 0 ≤ x ≤ 1 , {\displaystyle f(x;\theta ,\lambda )=h(x;\lambda )\exp \!{\big (}\lambda \theta x-\lambda B(\theta ){\big )…1.00infobox
Continuous binomial distributionSupportx ∈ [ 0 , 1 ] {\displaystyle x\in [0,1]} if λ = 1 {\displaystyle \lambda =1} , x ∈ ( 0 , 1 ) {\displaystyle x\in (0,1)} if λ ≥ 2 {\displaystyle \lambda \geq 2}1.00infobox
Continuous binomial distributionVariance1 λ B ″ ( θ ) = { 1 λ ( 1 θ 2 − e θ ( e θ − 1 ) 2 ) , θ ≠ 0 , 1 12 λ , θ = 0. {\displaystyle {\frac {1}{\lambda }}B''(\theta )={\begin{cases}{\frac {1}{\lambda }}\left({\frac {1…1.00infobox

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