{"coeffs": [-1.953929481102848e-06, 1.3710746885924285e-05, 0.34369777239971144, 0.1868794856026864], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.7246021143315487e-07, 9.694262792682673e-07, 0.01368613299663283, 0.01781028325993447], "covariance": [[2.232186513874614e-13, -4.3173618042174543e-13, -5.1851609051860665e-09, -8.277738629591342e-09], [-4.317361804217383e-13, 9.397873109359168e-13, 1.2669448718793378e-08, 1.700913080476366e-08], [-5.1851609051858846e-09, 1.2669448718793191e-08, 0.00018731023640152191, 0.00021765095030011042], [-8.277738629591274e-09, 1.7009130804763792e-08, 0.00021765095030011557, 0.000317206189799102]]}