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- > summary(p1)
- Pearson residuals:
- Min 1Q Median 3Q Max
- -4.1235 -1.3127 -0.7073 1.2650 13.3738
- Count model coefficients (poisson with log link):
- Estimate Std. Error z value Pr(>|z|)
- (Intercept) 11.974985 0.001449 8263.627 <2e-16 ***
- Day2 1.841290 0.001498 1229.524 <2e-16 ***
- GroupE -0.058573 0.002080 -28.160 <2e-16 ***
- GroupL -0.022356 0.002307 -9.692 <2e-16 ***
- Day2:GroupE 0.033049 0.002131 15.506 <2e-16 ***
- Day2:GroupL -0.510861 0.002359 -216.575 <2e-16 ***
- Zero-inflation model coefficients (binomial with log link):
- Estimate Std. Error z value Pr(>|z|)
- (Intercept) -0.6933 0.4083 -1.698 0.0895 .
- Day2 -0.8112 0.7455 -1.088 0.2766
- GroupE 0.2876 0.4715 0.610 0.5419
- GroupL 0.5110 0.4282 1.193 0.2328
- Day2:GroupE -1.4917 1.2431 -1.200 0.2301
- Day2:GroupL -1.8972 1.2317 -1.540 0.1235
- ---
- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
- Number of iterations in BFGS optimization: 14
- Log-likelihood: -1.208e+07 on 12 Df
- > summary(m1)
- Deviance Residuals:
- Min 1Q Median 3Q Max
- -1349.5 -531.6 -227.5 311.6 2480.8
- Coefficients:
- Estimate Std. Error z value Pr(>|z|)
- (Intercept) 11.281836 0.001449 7785.3 <2e-16 ***
- Day2 2.283125 0.001498 1524.6 <2e-16 ***
- GroupE -0.464042 0.002080 -223.1 <2e-16 ***
- GroupL -1.120968 0.002307 -486.0 <2e-16 ***
- Day2:GroupE 0.620839 0.002131 291.3 <2e-16 ***
- Day2:GroupL 0.781906 0.002359 331.5 <2e-16 ***
- ---
- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
- (Dispersion parameter for poisson family taken to be 1)
- Null deviance: 57480533 on 68 degrees of freedom
- Residual deviance: 33466708 on 63 degrees of freedom
- AIC: 33467398
- Number of Fisher Scoring iterations: 7
- p1=zeroinfl(Count ~ Day*Group, link = "log", dist="poisson", data = df)
- m1=glm(formula = Count ~ Day*Group, family = poisson(link="log", data = df)
- vuong(p1,m1)
- Day Group Count
- 2 E 343874
- 2 E 1218298
- 2 E 1368672
- 2 E 354983
- 2 E 237219
- 2 E 635455
- 2 E 382917
- 2 E 596436
- 2 E 1759721
- 2 C 271107
- 2 C 406661
- 2 C 2277301
- 2 C 0
- 2 C 232378
- 2 C 3197440
- 2 C 0
- 2 C 388092
- 2 C 232378
- 2 L 813322
- 2 L 1138650
- 2 L 881098
- 2 L 46936
- 2 L 921765
- 2 L 433772
- 2 L 1358359
- 2 L 894074
- 2 L 990795
- 2 L 38730
- 2 L 0
- 2 L 542214
- 2 L 77459
- 2 L 154918
- 2 L 209319
- 2 L 162664
- 2 L 271107
- 2 L 1046595
- 2 E 1026504
- 2 E 203330
- 2 E 4164301
- 2 E 715259
- 2 E 0
- 2 E 650657
- 1 E 0
- 1 E 165952
- 1 E 162664
- 1 E 0
- 1 E 0
- 1 E 0
- 1 C 0
- 1 C 171206
- 1 C 271107
- 1 C 0
- 1 C 33888
- 1 C 0
- 1 L 0
- 1 L 0
- 1 L 0
- 1 L 90369
- 1 L 0
- 1 L 220080
- 1 L 0
- 1 L 0
- 1 L 0
- 1 L 0
- 1 L 0
- 1 L 0
- 1 E 120492
- 1 E 0
- 1 E 0
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