What is the best way to access a specific element in a table?
What if you want to access a single element in a table, rather than a whole row or whole column?
For accessing a single element, look at the .getColumn and .get methods.
For example:
Note that getColumn and get are simple for accessing a single element in
position space; but are inefficient for accessing many values. ColumnSource and Chunk objects provide much more efficient bulk data access.