saemix version used for fitting: 3.1.9000 mkin version used for pre-fitting: 0.9.50.4 R version used for fitting: 4.0.3 Date of fit: Wed Dec 9 08:16:28 2020 Date of summary: Wed Dec 9 08:23:19 2020 Equations: d_parent/dt = - ((k1 * g * exp(-k1 * time) + k2 * (1 - g) * exp(-k2 * time)) / (g * exp(-k1 * time) + (1 - g) * exp(-k2 * time))) * parent d_m1/dt = + f_parent_to_m1 * ((k1 * g * exp(-k1 * time) + k2 * (1 - g) * exp(-k2 * time)) / (g * exp(-k1 * time) + (1 - g) * exp(-k2 * time))) * parent - k_m1 * m1 Data: 509 observations of 2 variable(s) grouped in 15 datasets Model predictions using solution type analytical Fitted in 10.222 s using 300, 100 iterations Variance model: Constant variance Mean of starting values for individual parameters: parent_0 k_m1 f_parent_to_m1 k1 k2 1.007005e+02 1.837381e-03 4.803953e-01 4.534096e-02 1.918378e-02 g 5.068235e-01 Fixed degradation parameter values: None Results: Likelihood computed by importance sampling AIC BIC logLik 2692 2702 -1333 Optimised parameters: est. lower upper parent_0 1.002e+02 99.302986 1.011e+02 k_m1 2.182e-03 0.001576 2.788e-03 f_parent_to_m1 4.883e-01 0.447687 5.289e-01 k1 4.014e-02 0.023941 5.634e-02 k2 1.517e-02 0.008507 2.184e-02 g 5.007e-01 0.380534 6.208e-01 Correlation: prnt_0 k_m1 f_p__1 k1 k2 k_m1 -0.152 f_parent_to_m1 -0.138 0.396 k1 0.085 -0.036 -0.026 k2 0.005 0.067 0.018 -0.043 g -0.075 -0.113 -0.029 -0.248 -0.263 Random effects: est. lower upper SD.parent_0 1.2293 0.3904 2.0682 SD.k_m1 0.1383 -0.4780 0.7545 SD.f_parent_to_m1 0.2843 0.1746 0.3940 SD.k1 0.7097 0.4220 0.9974 SD.k2 0.7829 0.4712 1.0946 SD.g 0.2666 -0.3260 0.8592 Variance model: est. lower upper a.1 2.749 2.569 2.929 Resulting formation fractions: ff parent_m1 0.4883 parent_sink 0.5117 Estimated disappearance times: DT50 DT90 DT50back DT50_k1 DT50_k2 parent 27.07 110.1 33.14 17.27 45.68 m1 317.69 1055.4 NA NA NA