I am having problems adding a line to one scatter plot. My data is fit to an exponential model. I used nls to get coefficients:
fit <- nls(volumen ~ bo+ exp(b1*dap), data= df, start = list(bo=0, b1=55))
Later I used plot and lines commands to visualize the fit to my data:
plot(dap,volumen)
lines(dap,predict(fit,data.frame(x=dap)))
My Big problem is that I visualize a linear line that does not fit with my exponential points.
Could my model statement have errors?
Please, any comments I would appreciate.