Displaying 4 results from an estimated 4 matches for "reactran".
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reaction
2012 Dec 03
2
Solving a multinomial gompertz partial differential equation in r
I haven't used r in quite a while but would like to get back into it. I
have a problem that I would like to solve with r. I have some multinomial
data that looks to follow an asymmetric sigmoidal growth pattern. Solving
a multinomial gompertz partial differential equation in r is what I’m after.
Would anyone be able to provide me the code and packages to do something
like this?
Regards,
2012 Sep 14
2
Creation of text files for use with UCODE_2005
Hello,
I'm new to R-help, although I am a frequent user of its resources. I am
using the package REACTRAN to run some relatively simple transport modeling
(which we hope will evolve greater functionality over time). I would like to
optimize model parameters to match observed field data, and am interested in
using UCODE_2005 for this, which our lab has previously used to great
success.
The problem: cr...
2010 Apr 26
1
finite difference scheme for 2D differential equations
Hello everyone,
I am trying to solve 2D differential equations using finite difference
scheme in R. I have been able to work with the equations with only one
spatial dimensions but I want to extend it to the two dimensional problem.
For example i can simulate one dimensional diffusion using a code like the
following. But I want to write a similar code for,say, a two dimensional
diffusion
2009 Dec 13
3
CRAN (and crantastic) updates this week
CRAN (and crantastic) updates this week
New packages
------------
* Bergm (1.0)
Alberto Caimo
http://crantastic.org/packages/Bergm
Functions implementing Bayesian estimation for exponential random
graph models via exchange algorithm
Updated packages
----------------
lmtest (0.9-26), logcondens (1.3.5), MTSKNN (0.0-4), pmml (1.2.21),
r2lUniv (0.9.4), rattle (2.5.11), rgdal (0.6-23),