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2008 Aug 11
3
Peoblem with nls and try
...by nls.
I have a long data .csv
I want to read evry time the first colunm to the other colunm and analisy with thata tools
setwd("C:/dati")
a<-read.table("Normalizzazione.csv", sep=",", dec=".", header=F)
for (i in 1:dim(a[[2]]]) {
#preparazione dati da analizzare singolarmente
P1<-data.frame(Time=a[,2],RFU=a[,i+2])
P1<-data.frame(Time=a[,1],RFU=a[,2])
nlmod2 <- nls(RFU ~ A + (B+c*Time)/(1+exp(k*(e-Time))),
P1, start = list(A = 100, c = 1, B = 10, k =2, e = 10),control = nls.control(maxiter = 100000),trace = TRUE)
print (summary(nlmod2))...