State Select Parameter
The State Select parameter determines how relevant variables are used by the engine as states.
Select one of the following five values:
never : Do not use as a state.
avoid : Use as state if it cannot be avoided, but only if the variable appears differentiated and no other potential state with attributed default, prefer, or always can be selected.
default : Use as state if appropriate, but only if the variable appears differentiated.
prefer : Prefer it as a state over those having the default value.
always : Do use as a state.
1-D Mechanical Overview
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