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Fig. 2 | BMC Medical Research Methodology

Fig. 2

From: Inferencing superspreading potential using zero-truncated negative binomial model: exemplification with COVID-19

Fig. 2

The estimation of dispersion parameter, k, under scenarios with different under-reporting ratios, w, of index cases who have 0 secondary case associated and different true values of k. In each panel, the curves show the log-likelihood profiles, and the triangular dots indicate the maximum likelihood estimates (MLE) of k. The zero-truncated version is shown in red, the non-truncated version is shown in blue, and the true values of k is indicated by the vertical green line

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