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mkin version used for fitting: Dummy 0.0 for testing
R version used for fitting: Dummy R version for testing
Date of fit: Dummy date for testing
Date of summary: Dummy date for testing
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
Model predictions using solution type analytical
Fitted with method Port using 127 model solutions performed in 0.401 s
Weighting: none
Starting values for parameters to be optimised:
value type
parent_0 85.10 state
k1 0.10 deparm
k2 0.01 deparm
g 0.50 deparm
Starting values for the transformed parameters actually optimised:
value lower upper
parent_0 85.100000 -Inf Inf
log_k1 -2.302585 -Inf Inf
log_k2 -4.605170 -Inf Inf
g_ilr 0.000000 -Inf Inf
Fixed parameter values:
None
Optimised, transformed parameters with symmetric confidence intervals:
Estimate Std. Error Lower Upper
parent_0 85.0000 0.89070 82.7100 87.2900
log_k1 -0.7775 0.04430 -0.8914 -0.6636
log_k2 -4.0260 0.17030 -4.4640 -3.5880
g_ilr 1.2490 0.07619 1.0530 1.4450
Parameter correlation:
parent_0 log_k1 log_k2 g_ilr
parent_0 1.00000 0.4338 0.07924 -0.01897
log_k1 0.43380 1.0000 0.46567 -0.66010
log_k2 0.07924 0.4657 1.00000 -0.74183
g_ilr -0.01897 -0.6601 -0.74183 1.00000
Residual standard error: 0.9341 on 5 degrees of freedom
Backtransformed parameters:
Confidence intervals for internally transformed parameters are asymmetric.
t-test (unrealistically) based on the assumption of normal distribution
for estimators of untransformed parameters.
Estimate t value Pr(>t) Lower Upper
parent_0 85.00000 95.440 1.197e-09 82.71000 87.29000
k1 0.45960 22.570 1.586e-06 0.41010 0.51500
k2 0.01785 5.873 1.016e-03 0.01152 0.02765
g 0.85390 63.540 9.135e-09 0.81590 0.88520
Chi2 error levels in percent:
err.min n.optim df
All data 2.661 4 5
parent 2.661 4 5
Estimated disappearance times:
DT50 DT90 DT50_k1 DT50_k2
parent 1.887 21.25 1.508 38.83
Data:
time variable observed predicted residual
0 parent 85.1 85.003 0.09726
1 parent 57.9 58.039 -0.13912
3 parent 29.9 30.054 -0.15351
7 parent 14.6 13.866 0.73388
14 parent 9.7 9.787 -0.08657
28 parent 6.6 7.532 -0.93205
63 parent 4.0 4.033 -0.03269
91 parent 3.9 2.447 1.45348
119 parent 0.6 1.484 -0.88424
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