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Autoregressive Conditional Heteroskedasticity

A statistical measure of the average error between a best fit line and actual data that uses past data to predict future performance. General Autoaggressive Conditional Heteroskedasticity is the most common way of doing this. See also: Fractal Distribution.
References in periodicals archive ?
Nonetheless, differences in fluctuating asymmetry between sexes for each character were evaluated using Levene's test and showed one character, width of zygomatic arch, to differ significantly between males and females (Table 4).
The well-developed masseter inserts along the rostrum and zygomatic arch, and together with the temporalis may affect skull morphology in a complex fashion.
The patient was taken to the operating room for a radical left parotidectomy, left neck dissection, zygomatic arch resection, and infratemporal resection (figure 3, A).
The ball penetrated the skin just below the right zygomatic arch overlying the coronoid process of the mandible.
CT demonstrated that a large soft-tissue mass had eroded the mandibular condyle, zygomatic arch, and inferior anterolateral aspect of the petrous bone, with intracranial extension and compression of the temporal lobe (figure 1).
Accompanying adaptations included the bowing of the zygomatic arch to accommodate the larger masseter and the increased complexity of the post-canine teeth for mastication.
The projectile had entered above the zygomatic arch and its tip rested at the posterior end of the left inferior turbinate.