Dear all, I have a data set like this in Excel format; ID Country Age Weight Sex Area ET010001 Ethiopia 1 8.5 Female Urban ET010001 Ethiopia 5 15.6 Female Urban ET010001 Ethiopia 8 20.1 Female Urban ET010002 Ethiopia 1 7.5 Male Rural ET010002 Ethiopia 5 13.2 Male Rural ET010002 Ethiopia 8 17.6 Male Rural ET010004 Ethiopia 1 9.5 Female Urban ET010004 Ethiopia 5 16.6 Female Urban ET010004 Ethiopia 8 20.6 Female Urban IN010001 India 1 7.6 Male Urban IN010001 India 5 16.7 Male Urban IN010001 India 8 22.3 Male Urban IN010002 India 1 8.3 Male Rural IN010002 India 5 15.0 Male Rural IN010002 India 8 21.5 Male Rural IN010003 India 1 7.2 Female Urban IN010003 India 5 14.0 Female Urban IN010003 India 8 18.3 Female Urban . . . . . . . . . . . . . . . . . . IN200105 India 1 9.5 Male Urban IN200105 India 5 17.7 Male Urban IN200105 India 8 20.2 Male Urban How can I estimate the growth models' parameters (by Nlmixed procedure) (e.g., Logistic and Gompertz functions) for each ID as x=Age & y=Weight? And how can I add the three covariates (Country, Sex, & Area)? Thank You!
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