If your goal is to simply concatenate two tables, such that the first row of each table is combined into the first row of the output, the second row of each table is merged into the second row of the output, etc. all you need is to use the [] operator. That is, assuming they are the same height, or one of the tables is empty, and none of the tables have duplicate variable names. However, it is easy to fix duplicate variable names.
Consider this example:
t1 = table((1:10)')
t2 = table((11:20)')
t3 = table()
% Append a prefix to table variable names to avoid duplicate names.
t1.Properties.VariableNames = "t1." + t1.Properties.VariableNames
t2.Properties.VariableNames = "t2." + t2.Properties.VariableNames
% Now concatenate the three matrices:
t = [t1 t2 t3]
If your goal is more of a "join" operation, in which you use the value in one variable of each table as a key to match rows from multiple tables, you want to look into the different ways to Join Tables, including the innerjoin, outerjoin, and join commands.
