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statistique, théorie et gestion de portefeuille - Docs at ISFA

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114 3. Distributions exponentielles étirées contre distributions régulièrement variables<br />

Mean AD-st<strong>at</strong>istic for u1 – u9<br />

N-pos N-neg DJ-pos DJ-neg<br />

Weibull 1.86 (89.34%) 1.34 (79.18%) 5.43 (99.82%) 3.85 (98.91%)<br />

Gen. Par<strong>et</strong>o 4.45 (99.45%) 2.68 (96.01%) 12.47 (99.996%) 6.44 (99,99%)<br />

Gamma 3.59 (98.59%) 2.82 (96.62%) 8.76 (99.996%) 7.23 (99.996%)<br />

Exponential 3.64 (98.66%) 2.76 (96.36%) 13.96 (99.996%) 10.10 (99.996%)<br />

Par<strong>et</strong>o 475.2 (99.996%) 441.7 (99.996%) 691.7 (99.996%) 607.9 (99.996%)<br />

Mean AD-st<strong>at</strong>istic for u10 – u18<br />

Weibull 1.21 (74.29%) .988 (63.39%) .835 (53,52%) .849 (54.54%)<br />

Gen. Par<strong>et</strong>o 2.29 (93.57%) 1.88 (89.52%) 1.95 (90.28%) 1.36 (79.67%)<br />

Gamma 2.49 (95.00%) 1.90 (89.74%) 2.12 (92.01%) 1.63 (86.02%)<br />

Exponential 3.26 (97.97%) 1.93 (90.02%) 4.52 (99.10%) 2.70 (96.11%)<br />

Par<strong>et</strong>o 1.80 (88.60%) 1.77 (88.23%) 1.18 (73.01%) 1.65 (86.40%)<br />

Table 7: Mean An<strong>de</strong>rson-Darling distances in the range of thresholds u1-u9 and in the range u10-u18. The<br />

figures within parenthesis characterize the goodness of fit: they represent the significance levels with which<br />

the consi<strong>de</strong>red mo<strong>de</strong>l can be rejected.<br />

50

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