diff options
author | jranke <jranke@edb9625f-4e0d-4859-8d74-9fd3b1da38cb> | 2012-03-15 15:54:14 +0000 |
---|---|---|
committer | jranke <jranke@edb9625f-4e0d-4859-8d74-9fd3b1da38cb> | 2012-03-15 15:54:14 +0000 |
commit | 1718d434efae26de02754c6622c43f4dc9e624b9 (patch) | |
tree | c2dafe942f65e94cd43e1ba17933b667f284d154 /inst/doc/mkin.Rnw | |
parent | 2b244ef7d3cbebaaa653d8c8ac87090e34525f7a (diff) |
Update kinfit and mkin to the latest version published on BerliOS.
git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/kinfit/pkg/mkin@17 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Diffstat (limited to 'inst/doc/mkin.Rnw')
-rw-r--r-- | inst/doc/mkin.Rnw | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/inst/doc/mkin.Rnw b/inst/doc/mkin.Rnw index 78b59e6..2f71151 100644 --- a/inst/doc/mkin.Rnw +++ b/inst/doc/mkin.Rnw @@ -1,3 +1,4 @@ +% $Id: mkin.Rnw 66 2010-09-03 08:50:26Z jranke $
%%\VignetteIndexEntry{Routines for fitting kinetic models with one or more state variables to chemical degradation data}
%%VignetteDepends{FME}
%%\usepackage{Sweave}
@@ -78,7 +79,7 @@ barrier for \RR{} newcomers. \subsection{Data format}
The following listing shows example dataset C from the FOCUS kinetics
-report as distributed with the \Rpackage{kinfit} package
+report as distributed with the \Rpackage{mkin} package
<<FOCUS_2006_C_data, echo=TRUE, eval=TRUE>>=
library("mkin")
@@ -101,8 +102,9 @@ as shown in the following listing <<data_format, echo=TRUE>>=
example_data <- data.frame(
+ name = rep("parent", 9),
time = c(0, 1, 3, 7, 14, 28, 63, 91, 119),
- parent = c(85.1, 57.9, 29.9, 14.6, 9.7, 6.6, 4, 3.9, 0.6)
+ value = c(85.1, 57.9, 29.9, 14.6, 9.7, 6.6, 4, 3.9, 0.6)
)
@
@@ -122,12 +124,23 @@ SFORB_SFO <- mkinmod( m1 = list(type = "SFO"))
@
+The model definitions given above define sets of linear first-order ordinary
+differential equations. In these cases, a coefficient matrix is also returned.
+
+Other models that include time on the right-hand side of the differential
+equation are the first-order multi-compartment (FOMC) model and the
+Hockey-Stick (HS) model. At present, only the FOMC model can only be used, and
+only for the parent compound.
+
\subsection{Fitting the model}
Then the model parameters should be fitted to the data. The function
\Robject{mkinfit} internally creates a cost function using \Robject{modCost}
from the \Rpackage{FME} package and the produces a fit using \Robject{modFit}
-from the same package.
+from the same package. In cases of linear first-order differential
+equations, the solution used for calculating the cost function is based
+on the fundamental system of the coefficient matrix, as proposed by
+\citet{bates88}.
<<model_fitting, echo=TRUE>>=
# Do not show significance stars as they interfere with vignette generation
@@ -136,8 +149,10 @@ SFO.fit <- mkinfit(SFO, FOCUS_2006_C) summary(SFO.fit)
SFORB.fit <- mkinfit(SFORB, FOCUS_2006_C)
summary(SFORB.fit)
-SFO_SFO.fit <- mkinfit(SFO_SFO, FOCUS_2006_D)
-summary(SFO_SFO.fit)
+SFO_SFO.fit <- mkinfit(SFO_SFO, FOCUS_2006_D, plot=TRUE)
+summary(SFO_SFO.fit, data=FALSE)
+SFORB_SFO.fit <- mkinfit(SFORB_SFO, FOCUS_2006_D, plot=TRUE)
+summary(SFORB_SFO.fit, data=FALSE)
@
\bibliographystyle{plainnat}
|