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