{"coeffs": [-0.19442418340548576, 5.712128407150768e-08, 0.4238990135162573, 0.0030806630256185394], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [NaN, 2.2947150839428028e-07, 45945.28246130666, 7111.0448333756885], "covariance": [[-6842805975375.213, 0.0, -74200496947.12349, -3074807260.6331496], [2.0811313276758375e-08, 5.2657173164746245e-14, -2.2360830086434916e-10, 5.462261504769053e-11], [-287849599973.108, -1.8576627753933802e-09, 2110968980.4492533, -604902671.1397771], [16343558738.08465, 7.740261564139085e-11, -298335127.3913198, 50566958.62227907]]}