{"coeffs": [-9.052428340900602e-09, 0.0036956956167838928, 2.77288206054881, 0.17641430314154877], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.3000252479114932e-08, 285.40204214192664, 13645.027447027458, 0.20446533251664978], "covariance": [[1.6900656452073393e-16, -3.4774444006910383e-06, -0.00016625757511415373, -2.5994149758957387e-09], [-3.477444400629201e-06, 81454.32565878207, 3894318.6971771144, 57.60959491568787], [-0.00016625757511681117, 3894318.6971771154, 186186774.03013265, 2754.3172364905377], [-2.599414975912693e-09, 57.60959491568787, 2754.317236490537, 0.041806072201144164]]}