Regression Equation
Regression Equation
Regression Equation
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<strong>Regression</strong> <strong>Equation</strong><br />
DRAFT<br />
( Y ) = (1- π)(<br />
μ)<br />
E i<br />
γ0<br />
+ γ1z1<br />
+ γ2z2...<br />
γmzm<br />
e<br />
π = γ0<br />
+ γ1z1<br />
+ γ2z2...<br />
γmzm<br />
1+ e<br />
Probability Portion<br />
μ<br />
=<br />
e<br />
β<br />
0<br />
+ β1x1<br />
+ β2x2<br />
... β n x n<br />
Count Portion<br />
E(Y i ) = expected mean value of cpue or richness<br />
π = probability of zero from logistic processes<br />
μ= mean value from negative binomial count processes<br />
γ= coefficients of logistic equation<br />
β= coefficients of negative binomial equation<br />
z= covariates from logistic equation<br />
x= covariates from negative binomial equation<br />
FOR DISCUSSION PURPOSES ONLY - NOT TO BE CITED
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