{"coeffs": [-3.5070408049616317e-07, -1.8229145202038266e-08, -0.2837182086885531, 0.022370055818618263], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.9052919994040045e-08, 2.2467549586879283e-08, 0.020627823093660777, 0.017942176514995606], "covariance": [[1.5251305600608929e-15, -4.017324020926617e-17, 2.9487991544407274e-10, -2.413641629047304e-10], [-4.017324020926616e-17, 5.047907844388794e-16, 9.538129111028782e-11, 8.718140381522828e-11], [2.9487991544407274e-10, 9.538129111028782e-11, 0.0004255070855833648, -2.4023729604802766e-05], [-2.413641629047304e-10, 8.71814038152283e-11, -2.4023729604802752e-05, 0.0003219216980952599]]}