@@ -190,96 +198,97 @@ distribution

The summary function returns a list with components, among others

version, Rversion

The mkin and R versions used

date.fit, date.summary

The dates where the fit and the summary were - produced

diffs

The differential equations used in the model

use_of_ff

Was maximum or minimum use made of formation fractions

bpar

Optimised and backtransformed - parameters

data

The data (see Description above).

start

The starting values and bounds, if applicable, for optimised - parameters.

fixed

The values of fixed parameters.

errmin

The chi2 error levels for - each observed variable.

bparms.ode

All backtransformed ODE - parameters, for use as starting parameters for related models.

errparms

Error model parameters.

The estimated formation fractions derived from the fitted - model.

distimes

The DT50 and DT90 values for each observed variable.

SFORB

If applicable, eigenvalues of SFORB components of the model.

- The print method is called for its side effect, i.e. printing the summary. +

date.fit, date.summary

The dates where the fit and the summary were +produced

diffs

The differential equations used in the model

use_of_ff

Was maximum or minimum use made of formation fractions

bpar

Optimised and backtransformed +parameters

data

The data (see Description above).

start

The starting values and bounds, if applicable, for optimised +parameters.

fixed

The values of fixed parameters.

errmin

The chi2 error levels for +each observed variable.

bparms.ode

All backtransformed ODE +parameters, for use as starting parameters for related models.

errparms

Error model parameters.

The estimated formation fractions derived from the fitted +model.

distimes

The DT50 and DT90 values for each observed variable.

SFORB

If applicable, eigenvalues of SFORB components of the model.

+The print method is called for its side effect, i.e. printing the summary.

References

FOCUS (2006) “Guidance Document on Estimating Persistence - and Degradation Kinetics from Environmental Fate Studies on Pesticides in - EU Registration” Report of the FOCUS Work Group on Degradation Kinetics, - EC Document Reference Sanco/10058/2005 version 2.0, 434 pp, - http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics

+and Degradation Kinetics from Environmental Fate Studies on Pesticides in +EU Registration” Report of the FOCUS Work Group on Degradation Kinetics, +EC Document Reference Sanco/10058/2005 version 2.0, 434 pp, +http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics

Examples


-  summary(mkinfit(mkinmod(parent = mkinsub("SFO")), FOCUS_2006_A, quiet = TRUE))
#> mkin version used for fitting:    0.9.49.9 
-#> R version used for fitting:       3.6.3 
-#> Date of fit:     Mon Mar 30 21:43:00 2020 
-#> Date of summary: Mon Mar 30 21:43:00 2020 
+  summary(mkinfit(mkinmod(parent = mkinsub("SFO")), FOCUS_2006_A, quiet = TRUE))
#> mkin version used for fitting:    0.9.50.1 
+#> R version used for fitting:       4.0.0 
+#> Date of fit:     Tue May 12 08:07:03 2020 
+#> Date of summary: Tue May 12 08:07:03 2020 
 #> 
 #> Equations:
-#> d_parent/dt = - k_parent_sink * parent
+#> d_parent/dt = - k_parent * parent
 #> 
 #> Model predictions using solution type analytical 
 #> 
-#> Fitted using 131 model solutions performed in 0.306 s
+#> Fitted using 131 model solutions performed in 0.026 s
 #> 
 #> Error model: Constant variance 
 #> 
 #> Error model algorithm: OLS 
 #> 
 #> Starting values for parameters to be optimised:
-#>                value   type
-#> parent_0      101.24  state
-#> k_parent_sink   0.10 deparm
+#>           value   type
+#> parent_0 101.24  state
+#> k_parent   0.10 deparm
 #> 
 #> Starting values for the transformed parameters actually optimised:
-#>                        value lower upper
-#> parent_0          101.240000  -Inf   Inf
-#> log_k_parent_sink  -2.302585  -Inf   Inf
+#>                   value lower upper
+#> parent_0     101.240000  -Inf   Inf
+#> log_k_parent  -2.302585  -Inf   Inf
 #> 
 #> Fixed parameter values:
 #> None
 #> 
+#> Results:
+#> 
+#>        AIC     BIC    logLik
+#>   55.28197 55.5203 -24.64099
+#> 
 #> Optimised, transformed parameters with symmetric confidence intervals:
-#>                   Estimate Std. Error  Lower   Upper
-#> parent_0           109.200    3.70400 99.630 118.700
-#> log_k_parent_sink   -3.291    0.09176 -3.527  -3.055
-#> sigma                5.266    1.31600  1.882   8.649
+#>              Estimate Std. Error  Lower   Upper
+#> parent_0      109.200    3.70400 99.630 118.700
+#> log_k_parent   -3.291    0.09176 -3.527  -3.055
+#> sigma           5.266    1.31600  1.882   8.649
 #> 
 #> Parameter correlation:
-#>                    parent_0 log_k_parent_sink     sigma
-#> parent_0          1.000e+00         5.428e-01 1.642e-07
-#> log_k_parent_sink 5.428e-01         1.000e+00 2.507e-07
-#> sigma             1.642e-07         2.507e-07 1.000e+00
+#>               parent_0 log_k_parent     sigma
+#> parent_0     1.000e+00    5.428e-01 1.642e-07
+#> log_k_parent 5.428e-01    1.000e+00 2.507e-07
+#> sigma        1.642e-07    2.507e-07 1.000e+00
 #> 
 #> 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      109.20000   29.47 4.218e-07 99.6300 118.70000
-#> k_parent_sink   0.03722   10.90 5.650e-05  0.0294   0.04712
-#> sigma           5.26600    4.00 5.162e-03  1.8820   8.64900
+#>           Estimate t value    Pr(>t)   Lower     Upper
+#> parent_0 109.20000   29.47 4.218e-07 99.6300 118.70000
+#> k_parent   0.03722   10.90 5.650e-05  0.0294   0.04712
+#> sigma      5.26600    4.00 5.162e-03  1.8820   8.64900
 #> 
 #> FOCUS Chi2 error levels in percent:
 #>          err.min n.optim df
 #> All data   8.385       2  6
 #> parent     8.385       2  6
 #> 
-#> Resulting formation fractions:
-#>             ff
-#> parent_sink  1
-#> 
 #> Estimated disappearance times:
 #>         DT50  DT90
 #> parent 18.62 61.87
@@ -296,17 +305,10 @@ distribution
 #>   118   parent     0.39     1.351  -0.9613

Summary method for class "mkinfit"

References

Examples

Contents

Author