LoglinearExamples_2011

# LoglinearExamples_2011 - Stat 665 Spring 2011 Kaizar...

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Stat 665, Spring 2011, Kaizar Log-Linear Piano Example Pianos Piano Type Orchestra Steinway Other Boston 36 18 Chicago 156 12 Cleveland 121 20 Minnesota 22 22 New York 99 22 Pianos 20 40 60 80 100 120 140 NewYork Minnesota Cleveland Chicago Boston Steinway Other

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Call: glm(formula = Freq ~ piano * orchestra, family = poisson, data = pianos.df, contrasts = list(orchestra = "contr.sum", piano = "contr.sum")) Deviance Residuals: [1] 0 0 0 0 0 0 0 0 0 0 Coefficients: Estimate Std. Error z value Pr(>|z|) (Intercept) 3.56684 0.06147 58.030 < 2e-16 *** piano1 0.65622 0.06147 10.676 < 2e-16 *** orchestra1 -0.32990 0.12759 -2.586 0.009718 ** orchestra2 0.20054 0.13130 1.527 0.126677 orchestra3 0.32892 0.11188 2.940 0.003284 ** orchestra4 -0.47580 0.13196 -3.606 0.000312 *** piano1:orchestra1 -0.30965 0.12759 -2.427 0.015224 * piano1:orchestra2 0.62625 0.13130 4.770 1.85e-06 *** piano1:orchestra3 0.24381 0.11188 2.179 0.029323 * piano1:orchestra4 -0.65622 0.13196 -4.973 6.60e-07 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 (Dispersion parameter for poisson family taken to be 1) Null deviance: 4.0689e+02 on 9 degrees of freedom Residual deviance: 5.5511e-15 on 0 degrees of freedom AIC: 74.11 Number of Fisher Scoring iterations: 3
Call: glm(formula = Freq ~ piano + orchestra, family = poisson, data = pianos.df, contrasts = list(orchestra = "contr.sum", piano = "contr.sum")) Deviance Residuals: 1 2 3 4 5 6 7 8 9 10 -1.30191 1.49274 0.47053 -2.54188 -0.04599 2.40958 -3.72828 -1.05617 4.13563 0.09840 Coefficients: Estimate Std. Error z value Pr(>|z|) (Intercept) 3.56741 0.06200 57.540 < 2e-16 *** piano1 0.76487 0.05688 13.447 < 2e-16 *** orchestra1 -0.53935 0.11668 -4.623 3.79e-06 *** orchestra2 0.59563 0.07793 7.643 2.13e-14 *** orchestra3 0.42042 0.08220 5.114 3.15e-07 *** orchestra4 -0.74415 0.12704 -5.858 4.69e-09 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

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LoglinearExamples_2011 - Stat 665 Spring 2011 Kaizar...

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