QuadraticProgram.binary_var_list

QuadraticProgram.binary_var_list(keys, name=None, key_format='{}')

Uses ‘var_list’ to construct a list of binary variables

Parameters:

• name (Optional[str]) – The name(s) of the variable(s). If it’s None or empty "", the default name, e.g., x0, is used.

• key_format (str) – The format used to name/index the variable(s).

• keys (Union[int, Sequence]) – If keys: int, it is interpreted as the number of variables to construct. Otherwise, the elements of the sequence are converted to strings via ‘str’ and substituted into key_format.

Return type:

List[Variable]

Returns:

A list of variable instances.

Raises:

• QiskitOptimizationError – if the variable name is already taken.

• QiskitOptimizationError – if less than one variable instantiation is attempted.

• QiskitOptimizationError – if key_format has more than one substitution or a nested substitution.