Google DataTable: Return a column object

I am using the google datatable object to create google visualizations. I would like to read a datatable and then create multiple subtables from that original object.

According to the google documentation there is not a method to "getColumn."

http://code.google.com/ap开发者_高级运维is/visualization/documentation/reference.html#DataTable

I know there is a cols property but I am not sure exactly what this property is used for. Does anyone have any ideas about how to do this, and explain what the cols property is used for?

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Sounds like making views from the original datatable is what you are looking for. Check out this link:

http://code.google.com/apis/visualization/documentation/reference.html#DataView

There its also a description of the cols property on that page.