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56
Tests_Michelle/Parameterschaetzung_müll.py
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56
Tests_Michelle/Parameterschaetzung_müll.py
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from typing import Dict, Any
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import sympy as sp
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from Stochastisches_Modell import StochastischesModell
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def iterative_ausgleichung(
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A: sp.Matrix,
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dl: sp.Matrix,
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modell: StochastischesModell,
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) -> Dict[str, Any]:
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ergebnisse_iter = [] #Liste für Zwischenergebnisse
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for it in range(max_iter):
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Q_ll, P = modell.berechne_Qll_P() #Stochastisches Modell: Qll und P berechnen
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N = A.T * P * A #Normalgleichungsmatrix N
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Q_xx = N.inv() #Kofaktormatrix der Unbekannten Qxx
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n = A.T * P * dl #Absolutgliedvektor n
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dx = N.LUsolve(n) #Zuschlagsvektor dx
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v = dl - A * dx #Residuenvektor v
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Q_vv = modell.berechne_Qvv(A, P, Q_xx) #Kofaktormatrix der Verbesserungen Qvv
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R = modell.berechne_R(Q_vv, P) #Redundanzmatrix R
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r = modell.berechne_r(R) #Redundanzanteile als Vektor r
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ergebnisse_iter.append({ #Zwischenergebnisse speichern in Liste
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"iter": it + 1,
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"Q_ll": Q_ll,
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"P": P,
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"N": N,
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"Q_xx": Q_xx,
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"dx": dx,
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"v": v,
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"Q_vv": Q_vv,
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"R": R,
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"r": r,
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"sigma_hat": sigma_hat,
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"sigma0_groups": dict(modell.sigma0_groups),
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})
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return {
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"dx": dx,
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"v": v,
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"Q_ll": Q_ll,
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"P": P,
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"N": N,
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"Q_xx": Q_xx,
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"Q_vv": Q_vv,
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"R": R,
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"r": r,
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"sigma_hat": sigma_hat,
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"sigma0_groups": dict(modell.sigma0_groups),
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"history": ergebnisse_iter,
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}
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