ccatkidlib.analysis.fit package

Subpackages

• ccatkidlib.analysis.fit.kid_phase_fit package
  • Submodules
  • ccatkidlib.analysis.fit.kid_phase_fit.fit_single_det module
    • ResonanceFitterSingleTone
      • ResonanceFitterSingleTone.calcphasebounds()
      • ResonanceFitterSingleTone.calcphasenlinbounds()
      • ResonanceFitterSingleTone.fitphase2()
      • ResonanceFitterSingleTone.fitphasenlin_c2()
      • ResonanceFitterSingleTone.fitphasenlintest2()
      • ResonanceFitterSingleTone.fitphasetest()
      • ResonanceFitterSingleTone.fits21sim()
      • ResonanceFitterSingleTone.fits21simnlin()
      • ResonanceFitterSingleTone.fphaselin()
      • ResonanceFitterSingleTone.fphasenlin()
      • ResonanceFitterSingleTone.fphasenlin2()
      • ResonanceFitterSingleTone.plot()
      • ResonanceFitterSingleTone.plotComplexPlane()
      • ResonanceFitterSingleTone.plotPolar()
      • ResonanceFitterSingleTone.rescaleCircle()
      • ResonanceFitterSingleTone.rotateCircle()
      • ResonanceFitterSingleTone.windowgauss()
      • ResonanceFitterSingleTone.windowlorentz()
  • ccatkidlib.analysis.fit.kid_phase_fit.phase_fit module
    • fit_single_res()
    • fit_target_sweep()
  • ccatkidlib.analysis.fit.kid_phase_fit.utils module
    • Circlefit
      • Circlefit.nsphere_fit_test()
    • complexS21()
    • estpara3()
    • find_a_extrapolatev2()
    • find_best_adrv()
    • find_best_adrv_extrapolate()
    • find_best_adrv_tone_amp()
    • find_first_zerocrossing1d()
    • find_nearest_indice()
    • findcabledelay()
    • fit_cable_delay()
    • get_dip_depth()
    • guess_tone_drive_atten()
    • logmag()
    • magS21()
    • phase2()
    • plot_summary_for_index()
    • removecable()
    • smoothdata2()
    • trimdata()
  • Module contents

Submodules

ccatkidlib.analysis.fit.fit module

ccatkidlib.analysis.fit.fit.circle_fit(x: ndarray, y: ndarray, bounds: tuple[list[float], list[float]] = None, full_output: bool = False, loss: str = 'soft_l1', f_scale: float = 1, method: str = 'trf')

ccatkidlib.analysis.fit.fit.init_circle_fit(x, y)

ccatkidlib.analysis.fit.fit.linear_fit(x: ndarray, y: ndarray) → tuple[float, float]

Calculate 2D linear regression for given x and y np.arrays by solving matrix equation

Parameters:

• x (np.ndarray) – Array of independent variable data

• y (np.ndarray) – Array of dependent variable data

Returns:

Slope, intercept

Return type:

tuple[int, int]

ccatkidlib.analysis.fit.fit.phase_fit(f: ndarray, phase: ndarray, I: ndarray | None = None, Q: ndarray | None = None, R: float | None = None, window: float | None = None, unwrap_threshold=5.969026041820607, params: Parameters | None = None, nonlinear: bool = False, method: str = 'least_squares')

Method for fitting to the phase of a kinetic inductance detector (KID)

Notes

Using method from https://doi.org/10.1117/12.3019161.

Parameters:

• f (np.ndarray) – Array of frequencies (in Hz)

• phase (np.ndarray) – Array of phases (in rad)

• I (np.ndarray, optional) – Array of in-phase components of complex transmission. Required for nonlinear fit

• Q (np.ndarray, optional) – Array of quadrature components of complex transmission. Required for nonlinear fit

• params (lmfit.Parameters, optional) – lmfit Parameters object to use as initial guess for fit

• R (float, optional) – Radius of the IQ circle. Only required for nonlinear fit and if not passed as a lmfit.Parameter in params

• nonlinear (bool, optional) – Whether to use nonlinear fit. Defaults to False

ccatkidlib.analysis.fit.fit.y_to_x_interp(ys, y_to_x_spline=None, x_to_y_spline=None)

ccatkidlib.analysis.fit.fit.y_to_x_spline(x: ndarray, y: ndarray, k: int = 3, y_low=None, y_up=None) → tuple[None | BSpline, BSpline | None]

Parameters:

• x (np.ndarray) – Array of independent variables

• y (np.ndarray) – Array of dependent variables

• k (int) – Degree of polynomials to interpolate with. Defaults to degree 3.

Returns:

y to x BSpline, x to y BSpline. Only returns one BSpline, the other will be None

Return type:

tuple[None | scipy.interpolate.BSpline, scipy.interpolate.BSpline | None]

Module contents