{"coeffs": [-3.276612921390431e-07, -1.2356515150503071e-08, -0.31891939833084826, 0.008989140683341956], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.323298779074229e-08, 3.5225955615967345e-08, 0.03463688768243768, 0.015670019214966795], "covariance": [[3.998410744944163e-15, -6.334825959258818e-18, 7.166878237070855e-10, -2.9522463616286463e-10], [-6.334825959258835e-18, 1.2408679490581014e-15, 1.8358494145134627e-10, 6.490676934524114e-11], [7.166878237070855e-10, 1.8358494145134632e-10, 0.001199713988325803, -0.00014705183187038934], [-2.9522463616286463e-10, 6.490676934524112e-11, -0.00014705183187038937, 0.0002455495021974285]]}