{"coeffs": [-1.150464365653763, 0.05468996833136572, -0.19664683558815121, 0.17706372820948893], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.0089749129759265e-07, 8.519851046791482e-08, 5.4867319877051884e-08, 5.523610395898029e-08], "covariance": [[0.020789249764669324, -0.006564165384096733, 0.005059062869542922, -0.005266297412746459], [-0.006564165384096733, 0.003738985611771156, -0.0009580199108865777, 0.002189002894975156], [0.005059062869542922, -0.0009580199108865774, 0.0015506624951672325, -0.0010953262449174754], [-0.005266297412746459, 0.002189002894975156, -0.0010953262449174758, 0.0015715777317345768]]}