Visualisation - Tableau

Education
#1

I am trying to visualize the data (DOI: 10.25337/T7/ptycho.v2.0/US.38362002) from Project Tycho, the map given below produced with Tableau visualization tool.

Treemap1

Do I have to have a column with the unique identifier in the data file that is uploaded in the Tableau visualization tool?

#2

Hi 992559,
Without knowing your data and what you want to visualize, it is hard to discuss your design. Could you post more information?

cheers,
ben