BinPacking#

class BinPacking(weights, max_weight, max_number_of_bins=None)[source]#

Bases: OptimizationApplication

Optimization application for the "bin packing" [1] problem.

References

[1]: "Bin packing", https://en.wikipedia.org/wiki/Bin_packing_problem

প্যারামিটার:
  • weights (List[int]) -- A list of the weights of items

  • max_weight (int) -- The maximum bin weight capacity

  • max_number_of_bins (int | None) -- The maximum number of bins by default equal to the number of items

Methods

get_figure(result)[source]#

Get plot of the solution of the Bin Packing Problem.

প্যারামিটার:

result (OptimizationResult | ndarray) -- The calculated result of the problem

রিটার্নস:

A plot of the solution, where x and y represent the bins and sum of the weights respectively.

রিটার্ন টাইপ:

fig

interpret(result)[source]#

Interpret a result as item indices

প্যারামিটার:

result (OptimizationResult | ndarray) -- The calculated result of the problem

রিটার্নস:

A list of lists with the items in each bin

রিটার্ন টাইপ:

items_in_bins

static sample_most_likely(state_vector)#

Compute the most likely binary string from state vector.

প্যারামিটার:

state_vector (QuasiDistribution | Statevector | ndarray | Dict) -- state vector or counts or quasi-probabilities.

রিটার্নস:

binary string as numpy.ndarray of ints.

রেইজেস:

ValueError -- if state_vector is not QuasiDistribution, Statevector, np.ndarray, or dict.

রিটার্ন টাইপ:

ndarray

to_quadratic_program()[source]#

Convert a bin packing problem instance into a QuadraticProgram

রিটার্নস:

The QuadraticProgram created from the bin packing problem instance.

রিটার্ন টাইপ:

QuadraticProgram