Estimation of growth model parameters for each ID?

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Frequent Contributor
Posts: 81

Estimation of growth model parameters for each ID?

Merry Christmas!

Dear all,

I have a data set like this;

ID Sex Age Weight

1    F    10      20

1    F    22      60

2    M    9       15

2    M   18      54

How can i estimate parameters (by Mixed or Nlmixed procedure) of the growth models (e.g, Brody function) for each ID?


The Brody function is:

y=a[1- {b*exp(-k*t)}]+e

y=observation (Weight)

exp=natural logarithms

t=Age

e= Residual


I used SAS9.1.3., could anyone please help me?

Best regards.

Zana

Grand Advisor
Posts: 9,596

Re: Estimation of growth model parameters for each ID?

It is statistical problem . Post it at SAS Statistical Procedures .

Or if your model was a economics model then post it at SAS Forecasting and Econometrics

Xia Keshan

Frequent Contributor
Posts: 81

Re: Estimation of growth model parameters for each ID?

Thanks Xia.

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