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Assigning Block Priorities
You can assign evaluation priorities to nonvirtual blocks in a model. Higher priority blocks evaluate before lower priority blocks, though not necessarily before blocks that have no assigned priority. You can assign block priorities interactively or programmatically. To set priorities programmatically, use the commandset_param(b,'Priority','n')where
b is a block path and n is any valid integer. (Negative numbers and 0 are valid priority values.) The lower the number, the higher the priority; that is, 2 is higher priority than 3. To set a block's priority interactively, enter the priority in the Priority field of the block's Block Properties dialog box (see "Block Properties Dialog Box").