{"coeffs": [-4.4111945239898126e-07, -2.0881785941880483e-08, -0.30504759172689333, 0.04587019006375627], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.6602211308534904e-08, 1.520626397469448e-08, 0.018133153196485098, 0.015481201524782445], "covariance": [[1.3397218726746403e-15, -7.413092394479988e-17, 4.107790238075279e-10, -3.4040892881702234e-10], [-7.413092394479987e-17, 2.3123046406809113e-16, 5.166609456321306e-11, 7.658081961917498e-11], [4.107790238075279e-10, 5.166609456321306e-11, 0.0003288112448471977, -8.543899796749417e-05], [-3.404089288170223e-10, 7.658081961917498e-11, -8.543899796749417e-05, 0.0002396676006509263]]}