patflo

Extract Data from Atrribute Table of Shape File to do further Calculations

Discussion created by patflo on Dec 20, 2011
Latest reply on Jan 18, 2012 by patflo
Hello im a beginner of Arcgisand i have following problem

I have a shapefile where i need to some calculations. In the shapefile there are attributes (Area in m², Irradiance in W/m² and temperature in °C???) and I have to do a multiplication. I can do It manual by adding a new field and type in the expression :  Power=Area*Irradiance.
But I need to do this for a lot of entrys and so I want to make a process in the model builder.  How can I extract the data in the attribute table to do the calculations and add a field at the end of the attribute table with the calculated power?

thanks for your help in advance

flo

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