Generalized Linear Models Homework 3 Nov 15 2016
نویسنده
چکیده
(a) Using R, fit 3 binomial GLMs for these data corresponding to 3 link functions, logit, probit, and complementary log-log. Perform residual analysis for each model, using the deviance residuals. Obtain fitted values, π̂i, under each model and compare with observed proportions, yi/mi. Obtain the estimated dose-response curve under each model by evaluating π̂(x) = g(β̂1 + β̂2x) over a grid of values of x for log dose in the interval (1.65, 1.9). Plot these curves and compare with the scatter plot of the observed xi plotted against the observed proportions. Based on all results above, discuss the fit of the different models. Solution:
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