, Chippenham, Wiltshire , SN14 OGB UK
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of Andras Farkas
Sent: 19 June 2013 00:46
To: r-help@r-project.org; r-sig-dynamic-mod...@r-project.org
Subject: [R] deSolve question
Dear All
Dear All
wonder if you could provide some insights on the following: currently I have
this code which produces the expected results:
require(deSolve)
pars - list(k = 0.08,v=15)
intimes - c(0,0.5,12)
input - c(800,0,0)
forc - approxfun(intimes, input, method=constant, rule=2)
derivs -
insun nam wrote:
Dear All,
I like to simulate a physiologically based pharmacokinetics model using R
but am having a problem with the daspk routine.
The same problem has been implemented in Berkeley madonna and Winbugs so
that I know that it is working. However, with daspk it is not, and the
In-Sun,
It is very simple. You define your state variables in the following order:
y - c(Agi = 0,Alu = 0, Abr = 0, Ah = 0, Ali = 0, Ak = 0, Am = 0, Ask =
0, Aad = 0, Apa = 0, Asp = 0, Aar = 0, Ave = 0)
and your rates of change in another order:
dy = c(dAar, dAve, dAlu, dAli, dAbr,
Dear All,
I like to simulate a physiologically based pharmacokinetics model using R
but am having a problem with the daspk routine.
The same problem has been implemented in Berkeley madonna and Winbugs so
that I know that it is working. However, with daspk it is not, and the
numbers are
Dear In-Sun:
I have not seen a reply, so I will offer some suggestions, hoping
I can help without understanding all the details.
1. Have you run that code with options(warn=2)? It
produced over 50 warnings for me, and options(warn=2) will convert the
warnings to errors,
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