Ventana software support forum

Thanks for your reply. I update my profile. I attaches the model image.

Thanks for your reply.I attached my model. In this model Phytomass is a level variable, temperature and precipitation are driving variables, NDVI is an auxiliary, Stock and Consumption rate are constant variables. I would like to do a sensitivity analysis for Phytomass, Which variables have the most...

hello everyone I would like test sensitivity analysis for my model. I used simulation control window, but in the parameter section, i can only select constant parameters, and when I use the auxiliary and driving variables, it gives an error. RROR: NDVI not found or wrong type must be constant. NDVI=...

You are right. But my question was how to draw two graphs together with lookup?

NDVI : normal different vegetation index
NDVI is representive of vegetation.
I want to write a equation for ndvi based on temperature and precipitation. How can i do it?
Is this conceptual model correct?

Hello everyone. i am having issues modelling. Would everyone help me, please? I want to investigate the effect of Temp (temperature) and Prcp (precipitation) on NDVI as shown in the attached figure1 figure1.jpg . In the equation section for NDVI, i selected lookup for type: , and in the As graph sec...