# Measurement (shot sampling & pure-state fidelity)

Turning a statevector into finite-shot counts (`sample_counts`, a Qiskit-`get_counts()`
equivalent), and comparing two pure states directly (`statevector_fidelity`) without building a
density matrix first.

::: dense_evolution.utils.measurement

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**See also**: [`uhlmann_fidelity`](mitigation.md) for the density-matrix fidelity `statevector_fidelity`
is the pure-state counterpart of.