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authorjranke <jranke@edb9625f-4e0d-4859-8d74-9fd3b1da38cb>2012-04-10 21:50:22 +0000
committerjranke <jranke@edb9625f-4e0d-4859-8d74-9fd3b1da38cb>2012-04-10 21:50:22 +0000
commitc1144753adfa0809003085009ebd85f8af9beda8 (patch)
treec07afafb9e6a3ffd1248167f4e40983bb3ef85fc /R/predict.mkinmod.R
parentd3df16102c5ed4bf9182b4f1893561e99eaed166 (diff)
- Fitting and summaries now work with the new parameter transformations.
- The SFORB models with metabolites is broken (see TODO) - Moved the vignette to the location recommended since R 2.14 - Added the missing documentation - Commented out the schaefer_complex_case test, as this version of mkin is not able to fit a model without sink and therefore mkin estimated parameters are quite different git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/kinfit/pkg/mkin@22 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Diffstat (limited to 'R/predict.mkinmod.R')
-rw-r--r--R/predict.mkinmod.R89
1 files changed, 0 insertions, 89 deletions
diff --git a/R/predict.mkinmod.R b/R/predict.mkinmod.R
deleted file mode 100644
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--- a/R/predict.mkinmod.R
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-predict.mkinmod <- function(mkinmod, odeparms, odeini, outtimes, solution_type = "deSolve", map_output = TRUE, atol = 1e-6) {
-
- # Get the names of the state variables in the model
- mod_vars <- names(mkinmod$diffs)
-
- # Create function for evaluation of expressions with ode parameters and initial values
- evalparse <- function(string)
- {
- eval(parse(text=string), as.list(c(odeparms, odeini)))
- }
-
- # Create a function calculating the differentials specified by the model
- # if necessary
- if (solution_type == "analytical") {
- parent.type = names(mkinmod$map[[1]])[1]
- parent.name = names(mkinmod$diffs)[[1]]
- o <- switch(parent.type,
- SFO = SFO.solution(outtimes,
- evalparse(parent.name),
- evalparse(paste("k", parent.name, sep="_"))),
- FOMC = FOMC.solution(outtimes,
- evalparse(parent.name),
- evalparse("alpha"), evalparse("beta")),
- DFOP = DFOP.solution(outtimes,
- evalparse(parent.name),
- evalparse("k1"), evalparse("k2"),
- evalparse("g")),
- HS = HS.solution(outtimes,
- evalparse(parent.name),
- evalparse("k1"), evalparse("k2"),
- evalparse("tb")),
- SFORB = SFORB.solution(outtimes,
- evalparse(parent.name),
- evalparse(paste("k", parent.name, "bound", sep="_")),
- evalparse(paste("k", sub("free", "bound", parent.name), "free", sep="_")),
- evalparse(paste("k", parent.name, sep="_")))
- )
- out <- cbind(outtimes, o)
- dimnames(out) <- list(outtimes, c("time", sub("_free", "", parent.name)))
- }
- if (solution_type == "eigen") {
- coefmat.num <- matrix(sapply(as.vector(mkinmod$coefmat), evalparse),
- nrow = length(mod_vars))
- e <- eigen(coefmat.num)
- c <- solve(e$vectors, odeini)
- f.out <- function(t) {
- e$vectors %*% diag(exp(e$values * t), nrow=length(mod_vars)) %*% c
- }
- o <- matrix(mapply(f.out, outtimes),
- nrow = length(mod_vars), ncol = length(outtimes))
- dimnames(o) <- list(mod_vars, outtimes)
- out <- cbind(time = outtimes, t(o))
- }
- if (solution_type == "deSolve") {
- mkindiff <- function(t, state, parms) {
-
- time <- t
- diffs <- vector()
- for (box in names(mkinmod$diffs))
- {
- diffname <- paste("d", box, sep="_")
- diffs[diffname] <- with(as.list(c(time, state, parms)),
- eval(parse(text=mkinmod$diffs[[box]])))
- }
- return(list(c(diffs)))
- }
- out <- ode(
- y = odeini,
- times = outtimes,
- func = mkindiff,
- parms = odeparms,
- atol = atol
- )
- }
- if (map_output) {
- # Output transformation for models with unobserved compartments like SFORB
- out_mapped <- data.frame(time = out[,"time"])
- for (var in names(mkinmod$map)) {
- if((length(mkinmod$map[[var]]) == 1) || solution == "analytical") {
- out_mapped[var] <- out[, var]
- } else {
- out_mapped[var] <- rowSums(out[, mkinmod$map[[var]]])
- }
- }
- return(out_mapped)
- } else {
- return(out)
- }
-}

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