Displaying 2 results from an estimated 2 matches for "stoichiometry".
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stoichiometric
2008 Nov 06
1
nls: Fitting two models at once?
Hello,
I'm still a newbie user and struggling to automate some analyses from
SigmaPlot using R. R is a great help for me so far!
But the following problem makes me go nuts.
I have two spectra, both have to be fitted to reference data. Problem: the
both spectra are connected in some way: the stoichiometry of coefficients
"cytf.v"/"cytb.v" is 1/2.
{{In the SigmaPlot workflow one has to copy the two spectra into one column
beneath each other and the two spectra are somehow treated as one curve -
like in http://home.arcor.de/ballaschk/cytbf-help/sigmaplot%20formula.png}}
Can anybo...
2010 Jul 21
0
Converting Between Character and Numeric Objects
...w = dim(sMatrix)[1], ncol = dim(sMatrix)[2])
velocities = vector(length = dim(sMatrix)[2])
## This series of 'for' loops scans the stoichiometrix matrix looking for
negative integers.
## Once it identifies a negative integer it pulls the row name and
exponentiates it to the
## appropriate stoichiometry, creating the flux expression.
for (i in 1:dim(sMatrix)[1]) {
for (j in 1:dim(sMatrix)[2]) {
if (sMatrix[i, j] >= 0) (temp[i, j] = NA)
else temp[i, j] = paste(rownames(sMatrix)[i], '^', -sMatrix[i, j], sep = '')
}
}
## Scan temp by column. Ignore strings that begin with ...