linopy.variables.Variable.fix

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linopy.variables.Variable.fix#

Variable.fix(value=None, decimals=8, overwrite=True)#

Fix the variable to a given value by collapsing its bounds.

Sets lower = upper = value.

If no value is given, the current solution value is used.

A fix value outside the variable’s current bounds emits a warning, but does not cause infeasibilities (the bounds are overridden). Fixing a binary variable to anything other than 0 or 1 raises.

Parameters:

  • value (float/array_like, optional) – Value to fix the variable to. If None, the current solution is used.

  • decimals (int, optional) – Number of decimal places to round continuous variables to. Integer and binary variables are always rounded to 0 decimal places. Default is 8.

  • overwrite (bool, optional) – If True (default), re-fix a variable that is already fixed to the new value (the originally stashed bounds are kept). If False, raise an error if the variable is already fixed.

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