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2009 Feb 10
2
plotting the result of a nonlinear regression
Hello,
to plot the result of a singular non linear regression (using nls) I usually use the function plotfit, for example:
r.PTG.V<-nls(PTG.P~ fz1(Portata, a,b), data=dati, start=list(a=10, b=10), nls.control(maxiter=200), algorithm='port',
trace=TRUE, na.action=na.omit, lower=list(a=0, b=10), upper=list(a=100, b=100))
plotfit(r.PTG.V)
I tried to use the function plotfit on the