Function describing exponential decline from a defined starting value, with
+an increasing rate constant, supposedly caused by microbial growth
+
Function describing exponential decline from a defined starting value, with
an increasing rate constant, supposedly caused by microbial growth
-
logistic.solution(t, parent.0, kmax, k0, r)
+
logistic.solution(t, parent_0, kmax, k0, r)
+
+logistic.solution(t, parent_0, kmax, k0, r)
Arguments
@@ -148,7 +162,7 @@ an increasing rate constant, supposedly caused by microbial growth
Time. |
- parent.0 |
+ parent_0 |
Starting value for the response variable at time zero. |
@@ -163,6 +177,10 @@ an increasing rate constant, supposedly caused by microbial growth
r |
Growth rate of the increase in the rate constant. |
+
+ parent.0 |
+ Starting value for the response variable at time zero. |
+
Value
@@ -171,6 +189,8 @@ an increasing rate constant, supposedly caused by microbial growth
Note
The solution of the logistic model reduces to the
+ SFO.solution
if k0
is equal to kmax
.
+
The solution of the logistic model reduces to the
SFO.solution
if k0
is equal to kmax
.
References
@@ -179,16 +199,25 @@ an increasing rate constant, supposedly caused by microbial growth
EU Registration” Report of the FOCUS Work Group on Degradation Kinetics,
Version 1.1, 18 December 2014
http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics
+
See also
+
+
Examples
#> Estimate se_notrans t value Pr(>t) Lower
-#> parent_0 1.057896e+02 1.9023449649 55.610120 3.768361e-16 1.016451e+02
-#> kmax 6.398190e-02 0.0143201029 4.467978 3.841828e-04 3.929235e-02
-#> k0 1.612775e-04 0.0005866813 0.274898 3.940351e-01 5.846685e-08
-#> r 2.263946e-01 0.1718110773 1.317695 1.061044e-01 4.335843e-02
-#> sigma 5.332935e+00 0.9145907310 5.830952 4.036926e-05 3.340213e+00
-#> Upper
-#> parent_0 109.9341588
-#> kmax 0.1041853
-#> k0 0.4448750
-#> r 1.1821121
-#> sigma 7.3256566
#> DT50 DT90 DT50_k0 DT50_kmax
-#> parent 36.86533 62.41511 4297.854 10.83349
#> Error in (function (t, parent_0, kmax, k0, r) { parent = parent_0 * (kmax/(kmax - k0 + k0 * exp(r * t)))^(kmax/r)})(t = c(0, 1, 1.21212121212121, 2.42424242424242, 3, 3.63636363636364, 4.84848484848485, 6.06060606060606, 7, 7.27272727272727, 8.48484848484848, 9.6969696969697, 10.9090909090909, 12.1212121212121, 13.3333333333333, 14, 14.5454545454545, 15.7575757575758, 16.969696969697, 18.1818181818182, 19.3939393939394, 20.6060606060606, 21.8181818181818, 23.030303030303, 24.2424242424242, 25.4545454545455, 26.6666666666667, 27.8787878787879, 28, 29.0909090909091, 30.3030303030303, 31.5151515151515, 32.7272727272727, 33.9393939393939, 35.1515151515152, 36.3636363636364, 37.5757575757576, 38.7878787878788, 40, 41.2121212121212, 42.4242424242424, 43.6363636363636, 44.8484848484849, 46.0606060606061, 47.2727272727273, 48.4848484848485, 49.6969696969697, 50.9090909090909, 52.1212121212121, 53.3333333333333, 54.5454545454545, 55.7575757575758, 56.969696969697, 58.1818181818182, 59.3939393939394, 60, 60.6060606060606, 61.8181818181818, 63.030303030303, 64.2424242424242, 65.4545454545455, 66.6666666666667, 67.8787878787879, 69.0909090909091, 70.3030303030303, 71.5151515151515, 72.7272727272727, 73.9393939393939, 75.1515151515152, 76.3636363636364, 77.5757575757576, 78.7878787878788, 80, 81.2121212121212, 82.4242424242424, 83.6363636363636, 84.8484848484848, 86.0606060606061, 87.2727272727273, 88.4848484848485, 89.6969696969697, 90, 90.9090909090909, 92.1212121212121, 93.3333333333333, 94.5454545454545, 95.7575757575758, 96.969696969697, 98.1818181818182, 99.3939393939394, 100.606060606061, 101.818181818182, 103.030303030303, 104.242424242424, 105.454545454545, 106.666666666667, 107.878787878788, 109.090909090909, 110.30303030303, 111.515151515152, 112.727272727273, 113.939393939394, 115.151515151515, 116.363636363636, 117.575757575758, 118.787878787879, 120), parent.0 = c(parent = 101.95687), kmax = 0.1, k0 = 1e-04, r = 0.2): unbenutztes Argument (parent.0 = 101.95687)
#> Timing stopped at: 0.001 0 0.001
#> Error in identical(fit$err_mod, "const"): Objekt 'm' nicht gefunden
#> Error in summary(m): Objekt 'm' nicht gefunden
#> Error in endpoints(m): Objekt 'm' nicht gefunden
#> Error in (function (t, parent_0, kmax, k0, r) { parent = parent_0 * (kmax/(kmax - k0 + k0 * exp(r * t)))^(kmax/r)})(t = c(0, 1, 1.21212121212121, 2.42424242424242, 3, 3.63636363636364, 4.84848484848485, 6.06060606060606, 7, 7.27272727272727, 8.48484848484848, 9.6969696969697, 10.9090909090909, 12.1212121212121, 13.3333333333333, 14, 14.5454545454545, 15.7575757575758, 16.969696969697, 18.1818181818182, 19.3939393939394, 20.6060606060606, 21.8181818181818, 23.030303030303, 24.2424242424242, 25.4545454545455, 26.6666666666667, 27.8787878787879, 28, 29.0909090909091, 30.3030303030303, 31.5151515151515, 32.7272727272727, 33.9393939393939, 35.1515151515152, 36.3636363636364, 37.5757575757576, 38.7878787878788, 40, 41.2121212121212, 42.4242424242424, 43.6363636363636, 44.8484848484849, 46.0606060606061, 47.2727272727273, 48.4848484848485, 49.6969696969697, 50.9090909090909, 52.1212121212121, 53.3333333333333, 54.5454545454545, 55.7575757575758, 56.969696969697, 58.1818181818182, 59.3939393939394, 60, 60.6060606060606, 61.8181818181818, 63.030303030303, 64.2424242424242, 65.4545454545455, 66.6666666666667, 67.8787878787879, 69.0909090909091, 70.3030303030303, 71.5151515151515, 72.7272727272727, 73.9393939393939, 75.1515151515152, 76.3636363636364, 77.5757575757576, 78.7878787878788, 80, 81.2121212121212, 82.4242424242424, 83.6363636363636, 84.8484848484848, 86.0606060606061, 87.2727272727273, 88.4848484848485, 89.6969696969697, 90, 90.9090909090909, 92.1212121212121, 93.3333333333333, 94.5454545454545, 95.7575757575758, 96.969696969697, 98.1818181818182, 99.3939393939394, 100.606060606061, 101.818181818182, 103.030303030303, 104.242424242424, 105.454545454545, 106.666666666667, 107.878787878788, 109.090909090909, 110.30303030303, 111.515151515152, 112.727272727273, 113.939393939394, 115.151515151515, 116.363636363636, 117.575757575758, 118.787878787879, 120), parent.0 = c(parent = 101.95687), kmax = 0.1, k0 = 1e-04, r = 0.2): unbenutztes Argument (parent.0 = 101.95687)
#> Timing stopped at: 0 0 0
#> Error in identical(fit$err_mod, "const"): Objekt 'm' nicht gefunden
#> Error in summary(m): Objekt 'm' nicht gefunden
#> Error in endpoints(m): Objekt 'm' nicht gefunden
-
@@ -241,7 +276,7 @@ an increasing rate constant, supposedly caused by microbial growth