Hi, In the 'mean weight' equation, you don't have any " age " argument; you should use " group.getAge() "which returns the age of the considered populationgroup expressed in years. You can see the available arguments of each equation by using the "open editor" interface. Hilaire Viktoria Kahui a écrit :

Hi

According to the ISIS manual ages are expressed in years but the age variable in the growth model is expressed in month. Does that mean the ‘mean weight’ under ‘InputPopulationEquation’ shall also be expressed in months for each age class?

Thanks to anyone who can clarify this.

Viktoria

Viktoria Kahui │ Post Doktor

Dept of Economics │NFH

University of Tromsø │ 9037Tromsø│Norway

Tel. +47 776 46386

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