{"coeffs": [-3.761508259524908e-05, 5.950756097260819e-07, -0.46137753866602843, 0.14242171284305744], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.3210446870096842e-05, 3.5028741612927247e-07, 0.09765097296383188, 0.028293959232018905], "covariance": [[1.7451590650765145e-10, -2.0790738942260622e-12, 1.2851503471109899e-06, -3.480555608096838e-07], [-2.079073894226049e-12, 1.2270127389852208e-13, -1.4902330112828444e-08, 5.839816315790792e-09], [1.2851503471109903e-06, -1.49023301128284e-08, 0.009535712520783024, -0.0025985428411580626], [-3.480555608096842e-07, 5.839816315790827e-09, -0.002598542841158065, 0.0008005481290231477]]}