Hello! I am doing a practice problem and I need help. With the practice data below, can someone show me how I would write the proc nlin for this? The initial estimates are a=20, b=20, r=.5 and I think the model is supposed to be something like g(t) = a/(1+b(e^rt)) Heights ID year1 year2 year3 year4 year5 year6 year7 year8 year9 year10 year11 1 2.12 4.8 7.4 9.1 12 13 14 15 15.5 16 16.5 2 2.95 5.5 8.4 9.6 11.5 13.5 15.5 17 17.8 18.5 19.1 3 1.95 4.6 6.6 8.75 10 11.5 13.5 14.5 15 15.5 16 4 1.85 3.3 6 8.6 10.5 13.5 17.5 19 20 20.5 21 5 2.55 4.5 5.8 7.47 9 11.5 14.5 16 16.5 17.5 18 6 3 5.5 8.5 9.85 11.5 13.5 15.5 17 18.5 19.5 20.2 7 2.72 4.1 6.6 9.32 11 13 15.5 16.5 17 17.5 17.8 9 2.05 3.3 6.6 8.7 10 12.5 14.5 16.5 17.5 18 18.6 10 2.71 5 7.1 9 10.5 13 14 15.5 17.5 18 18.5
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