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混合偏斜t分佈及其應用

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Figure 1: Plots of standard skew normal densities (dashed lines) and standard skew t densities (solid lines) with ν = 5 under various λ.
Figure 3: Plot of the profile log-likelihood of the degrees of freedom ν for fitting the bmimen data with a two component STMIX model with equal degrees of freedom (ν 1 = ν 2 = ν).
Table 1: ML estimation results for fitting various mixture models on the BMI adult men example.
Figure 4: Histogram of the bmimen data with overlaid four ML-fitted two component mixture densities (normal, Student’s t, skew normal and skew t).

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