Hi everyone. For a dataset consisting of three quantitative variables, H, M and W I have to build a non linear model of this form: E(H)=b0+b1*M+(W/(b3+b4*M)).
I tried using the "nls()" function in R, but I don't know how to determine the start values of the coefficients, b0, b1, b3 and b4. Can you help me determine them? And if you succeed, can you also tell me how did you obtain them? I provide the data file (within the dataset: W = wl, B = bm, H = ho). Thank you for any help.
I tried using the "nls()" function in R, but I don't know how to determine the start values of the coefficients, b0, b1, b3 and b4. Can you help me determine them? And if you succeed, can you also tell me how did you obtain them? I provide the data file (within the dataset: W = wl, B = bm, H = ho). Thank you for any help.
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