---
title: Qiskit noise learning API documentation (latest version)
description: Index of all the modules in the latest version of qiskit-noise-learning.
source: https://quantum.cloud.ibm.com/docs/en/api/qiskit-noise-learning
---

# API reference

- [Aer executor (`qiskit_noise_learning.aer_executor`)](/docs/api/qiskit-noise-learning/aer-executor)
- [Analysis (`qiskit_noise_learning.analysis`)](/docs/api/qiskit-noise-learning/analysis)
- [Circuit generator (`qiskit_noise_learning.circuit_generator`)](/docs/api/qiskit-noise-learning/circuit-generator)
- [Data (`qiskit_noise_learning.data`)](/docs/api/qiskit-noise-learning/data)
- [Experiment builder (`qiskit_noise_learning.experiment_builder`)](/docs/api/qiskit-noise-learning/experiment-builder)
- [Gate sets (`qiskit_noise_learning.gate_sets`)](/docs/api/qiskit-noise-learning/gate-sets)
- [Math (`qiskit_noise_learning.math`)](/docs/api/qiskit-noise-learning/math)
- [Models (`qiskit_noise_learning.models`)](/docs/api/qiskit-noise-learning/models)
- [Noise learner (`qiskit_noise_learning.noise_learner`)](/docs/api/qiskit-noise-learning/noise-learner)
- [Sequences (`qiskit_noise_learning.sequences`)](/docs/api/qiskit-noise-learning/sequences)
- [Visualizations (`qiskit_noise_learning.visualizations`)](/docs/api/qiskit-noise-learning/visualizations)


## Contents

- [API index](/docs/api/qiskit-noise-learning)
- [Release notes](/docs/api/qiskit-noise-learning/release-notes)
- qiskit_noise_learning.aer_executor
  - [Module overview](/docs/api/qiskit-noise-learning/aer-executor)
  - [AerExecutor](/docs/api/qiskit-noise-learning/generated/aer-executor-aer-executor)
  - [AerRuntimeJob](/docs/api/qiskit-noise-learning/generated/aer-executor-aer-runtime-job)
  - [inline_samplexes](/docs/api/qiskit-noise-learning/generated/aer-executor-inline-samplexes)
- qiskit_noise_learning.analysis
  - [Module overview](/docs/api/qiskit-noise-learning/analysis)
  - [AnalysisPipeline](/docs/api/qiskit-noise-learning/generated/analysis-analysis-pipeline)
  - [AnalysisStage](/docs/api/qiskit-noise-learning/generated/analysis-analysis-stage)
  - [AverageObservables](/docs/api/qiskit-noise-learning/generated/analysis-average-observables)
  - [ComputeObservables](/docs/api/qiskit-noise-learning/generated/analysis-compute-observables)
  - [CurveFitObservables](/docs/api/qiskit-noise-learning/generated/analysis-curve-fit-observables)
  - [Fit](/docs/api/qiskit-noise-learning/generated/analysis-fit)
  - [FlipPostSelect](/docs/api/qiskit-noise-learning/generated/analysis-flip-post-select)
  - [LegacySolve](/docs/api/qiskit-noise-learning/generated/analysis-legacy-solve)
  - [LinearSystemData](/docs/api/qiskit-noise-learning/generated/analysis-linear-system-data)
  - [LSQLinearSolve](/docs/api/qiskit-noise-learning/generated/analysis-lsq-linear-solve)
  - [NNLSSolve](/docs/api/qiskit-noise-learning/generated/analysis-nnls-solve)
  - [PositivityMinSolve](/docs/api/qiskit-noise-learning/generated/analysis-positivity-min-solve)
  - [SymmetrizeFidelities](/docs/api/qiskit-noise-learning/generated/analysis-symmetrize-fidelities)
  - [SymmetrizeGenerators](/docs/api/qiskit-noise-learning/generated/analysis-symmetrize-generators)
  - [ZeroPostSelect](/docs/api/qiskit-noise-learning/generated/analysis-zero-post-select)
- qiskit_noise_learning.circuit_generator
  - [Module overview](/docs/api/qiskit-noise-learning/circuit-generator)
  - [ExecutorCircuitGenerator](/docs/api/qiskit-noise-learning/generated/circuit-generator-executor-circuit-generator)
  - [ExecutorDataMapper](/docs/api/qiskit-noise-learning/generated/circuit-generator-executor-data-mapper)
- qiskit_noise_learning.data
  - [Module overview](/docs/api/qiskit-noise-learning/data)
  - [AggregatedObservableData](/docs/api/qiskit-noise-learning/generated/data-aggregated-observable-data)
  - [LeveledData](/docs/api/qiskit-noise-learning/generated/data-leveled-data)
  - [ModelData](/docs/api/qiskit-noise-learning/generated/data-model-data)
  - [ObservableData](/docs/api/qiskit-noise-learning/generated/data-observable-data)
  - [RawData](/docs/api/qiskit-noise-learning/generated/data-raw-data)
- qiskit_noise_learning.experiment_builder
  - [Module overview](/docs/api/qiskit-noise-learning/experiment-builder)
  - [AddInstructionSequences](/docs/api/qiskit-noise-learning/generated/experiment-builder-add-instruction-sequences)
  - [AddPaths](/docs/api/qiskit-noise-learning/generated/experiment-builder-add-paths)
  - [BindFragmentDepths](/docs/api/qiskit-noise-learning/generated/experiment-builder-bind-fragment-depths)
  - [CompleteSequences](/docs/api/qiskit-noise-learning/generated/experiment-builder-complete-sequences)
  - [Depth1Paths](/docs/api/qiskit-noise-learning/generated/experiment-builder-depth-1-paths)
  - [EvenDepthPaths](/docs/api/qiskit-noise-learning/generated/experiment-builder-even-depth-paths)
  - [EvenDepthVanillaPaths](/docs/api/qiskit-noise-learning/generated/experiment-builder-even-depth-vanilla-paths)
  - [Experiment](/docs/api/qiskit-noise-learning/generated/experiment-builder-experiment)
  - [ExperimentBuilder](/docs/api/qiskit-noise-learning/generated/experiment-builder-experiment-builder)
  - [ExperimentBuilderStage](/docs/api/qiskit-noise-learning/generated/experiment-builder-experiment-builder-stage)
  - [GenerateInstructionSequences](/docs/api/qiskit-noise-learning/generated/experiment-builder-generate-instruction-sequences)
  - [IdentifyRelations](/docs/api/qiskit-noise-learning/generated/experiment-builder-identify-relations)
  - [MergeInstructionSequences](/docs/api/qiskit-noise-learning/generated/experiment-builder-merge-instruction-sequences)
  - [RankReducePaths](/docs/api/qiskit-noise-learning/generated/experiment-builder-rank-reduce-paths)
  - [SPAMPaths](/docs/api/qiskit-noise-learning/generated/experiment-builder-spam-paths)
  - [VanillaInstructionSequences](/docs/api/qiskit-noise-learning/generated/experiment-builder-vanilla-instruction-sequences)
- qiskit_noise_learning.gate_sets
  - [Module overview](/docs/api/qiskit-noise-learning/gate-sets)
  - [Gate](/docs/api/qiskit-noise-learning/generated/gate-sets-gate)
  - [GateSet](/docs/api/qiskit-noise-learning/generated/gate-sets-gate-set)
  - [ModelGate](/docs/api/qiskit-noise-learning/generated/gate-sets-model-gate)
  - [ModelGateSet](/docs/api/qiskit-noise-learning/generated/gate-sets-model-gate-set)
  - [QiskitGate](/docs/api/qiskit-noise-learning/generated/gate-sets-qiskit-gate)
  - [QiskitGateSet](/docs/api/qiskit-noise-learning/generated/gate-sets-qiskit-gate-set)
- qiskit_noise_learning.math
  - [Module overview](/docs/api/qiskit-noise-learning/math)
  - [ComposedLinearMap](/docs/api/qiskit-noise-learning/generated/math-composed-linear-map)
  - [EnumeratedIndexedSpace](/docs/api/qiskit-noise-learning/generated/math-enumerated-indexed-space)
  - [IndexedMatrix](/docs/api/qiskit-noise-learning/generated/math-indexed-matrix)
  - [IndexedSpace](/docs/api/qiskit-noise-learning/generated/math-indexed-space)
  - [IndexedVector](/docs/api/qiskit-noise-learning/generated/math-indexed-vector)
  - [LinearMap](/docs/api/qiskit-noise-learning/generated/math-linear-map)
- qiskit_noise_learning.models
  - [Module overview](/docs/api/qiskit-noise-learning/models)
  - [contains_pauli_lindblad_model](/docs/api/qiskit-noise-learning/generated/models-contains-pauli-lindblad-model)
  - [GeneratorIndex](/docs/api/qiskit-noise-learning/generated/models-generator-index)
  - [get_noise_site](/docs/api/qiskit-noise-learning/generated/models-get-noise-site)
  - [IdentityFidelityModel](/docs/api/qiskit-noise-learning/generated/models-identity-fidelity-model)
  - [is_fidelity_model](/docs/api/qiskit-noise-learning/generated/models-is-fidelity-model)
  - [LogFidelitySpace](/docs/api/qiskit-noise-learning/generated/models-log-fidelity-space)
  - [PauliLindbladModel](/docs/api/qiskit-noise-learning/generated/models-pauli-lindblad-model)
  - [PauliLindbladSplit](/docs/api/qiskit-noise-learning/generated/models-pauli-lindblad-split)
  - [RateSpace](/docs/api/qiskit-noise-learning/generated/models-rate-space)
  - [split_pauli_lindblad_model](/docs/api/qiskit-noise-learning/generated/models-split-pauli-lindblad-model)
- qiskit_noise_learning.noise_learner
  - [Module overview](/docs/api/qiskit-noise-learning/noise-learner)
  - [LearningOptions](/docs/api/qiskit-noise-learning/generated/noise-learner-learning-options)
  - [NoiseLearner](/docs/api/qiskit-noise-learning/generated/noise-learner-noise-learner)
  - [NoiseLearnerJob](/docs/api/qiskit-noise-learning/generated/noise-learner-noise-learner-job)
  - [NoiseLearnerResult](/docs/api/qiskit-noise-learning/generated/noise-learner-noise-learner-result)
  - [ProgramExecutor](/docs/api/qiskit-noise-learning/generated/noise-learner-program-executor)
  - [ProgramJob](/docs/api/qiskit-noise-learning/generated/noise-learner-program-job)
- qiskit_noise_learning.sequences
  - [Module overview](/docs/api/qiskit-noise-learning/sequences)
  - [ApplyGate](/docs/api/qiskit-noise-learning/generated/sequences-apply-gate)
  - [FidelityIndex](/docs/api/qiskit-noise-learning/generated/sequences-fidelity-index)
  - [group_mergeable_instruction_sequences](/docs/api/qiskit-noise-learning/generated/sequences-group-mergeable-instruction-sequences)
  - [InstructionSequence](/docs/api/qiskit-noise-learning/generated/sequences-instruction-sequence)
  - [LogPathMap](/docs/api/qiskit-noise-learning/generated/sequences-log-path-map)
  - [LogPathSpace](/docs/api/qiskit-noise-learning/generated/sequences-log-path-space)
  - [PartialPauliPermutation](/docs/api/qiskit-noise-learning/generated/sequences-partial-pauli-permutation)
  - [Path](/docs/api/qiskit-noise-learning/generated/sequences-path)
- qiskit_noise_learning.visualizations
  - [Module overview](/docs/api/qiskit-noise-learning/visualizations)
  - [fidelity_index_math_label](/docs/api/qiskit-noise-learning/generated/visualizations-fidelity-index-math-label)
  - [gate_set_topology](/docs/api/qiskit-noise-learning/generated/visualizations-gate-set-topology)
  - [path_math_label](/docs/api/qiskit-noise-learning/generated/visualizations-path-math-label)
