# RoughXSXAmplitudeCal.update_calibrations¶

RoughXSXAmplitudeCal.update_calibrations(experiment_data)

Update the amplitude of one or several schedules.

The update rule extracts the rate of the oscillation from the fit to the cosine function. Recall that the amplitude is the x-axis in the analysis of the Rabi experiment. The value of the amplitude is thus the desired rotation-angle divided by the rate of the oscillation:

$A_i \to \frac{\theta_i}{\omega}$

where $$\theta_i$$ is the desired rotation angle (e.g. $$\pi$$ and $$\pi/2$$ for “x” and “sx” gates, respectively) and $$\omega$$ is the rate of the oscillation.

Parameters:
• experiment_data (ExperimentData) – The experiment data from which to extract the measured Rabi oscillation

• amplitude. (used to set the pulse) –