{"coeffs": [-1.014229738523521e-07, 0.001416885990428651, 5.918329035475288, 0.5878302815592282], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [7.815631620179634e-07, 47.782663396905136, 19884.856704244623, 5.1286276489153275], "covariance": [[6.108409762235173e-13, -3.7130493714756014e-05, -0.01545211384427514, -4.0023775678612864e-06], [-3.713049367866202e-05, 2283.1829213019378, 950151.4089638098, 244.71387620003568], [-0.015452113829244397, 950151.4089647093, 395407526.1483423, 101838.7873288701], [-4.0023775658391045e-06, 244.71387631371883, 101838.78737608317, 26.302821561218757]]}