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Table 1. Estimates of the parameters of the negative binomial regression model (for Gambusia holbrooki): SE, standard error; IC, interval of confidence.

Tabla 1. Estimaciones de los parámetros del modelo de regresión binomial negativa (para Gambusia holbrooki): SE, error estándar; IC, intérvalo de confianza.

 

 

Coefficients

 

Estimate

S.E.

z-value

Pr(>|z|)

Sign.

(Intercept)

6.247685

0.750739

8.322

< 2.10-16

***

Depth

-0.017242

0.005463

-3.156

0.001600

**

Salinity

-1.430826

0.399830

-3.579

0.000345

***

Velocity

-0.708805

0.184655

-3.839

0.000124

***

           
           

95% CI

 

Inf.

Sup.

 

Quality of fit of the model 

(Intercept)

4.776263

7.719107

 

Residual deviance

38.825

Depth

-0.027949

-0.006533

 

Degrees of freedom

32

Salinity

-2.214478

-0.647172

 

AIC

262.1

Velocity

-1.070722

-0.346887

 

Pearson residue test

0.24688