search for: acidification

...unable to find out how this is changed. http://www.nabble.com/file/p18025066/pic.jpeg I have added the script if this is of interrest: par(mar = c(7, 4, 4, 2) + 0.1) barplot(rbind(data$Asn,data$Glu,data$NH3), beside=T, axes=TRUE, xlim=c(0,57), ylim=c(0,10)) par(new=TRUE) plot(1:14,data$Acidification.time, axes=FALSE, type="b", xlab="", ylab="", xlim=c(0.3,14.7), ylim=c(6,8)) axis(1,pos=6, labels=FALSE, at=c(0.3,1:14,14.7)) text(1:14, par("usr")[3], srt = 90, adj = 1, labels = data$Month, xpd = TRUE) axis(4,pos=14.7) All help will be greatly...

Hello list I have a theoretical differential equation model (two coupled differential equations) describing the acidification of dairy cultures in milk: dX/dt = f(H, param)*X dH/dt = g(param)*dX/dt pH = -log10(H) I also have actual data of the same. I would like to estimate the parameters of the theoretical model from real data, but don't know how to go about it in R (I'm fairly new to R). Is there an R-packag...