T = table([1;2;3;4],{'ok';'let''s';'see';'here'})
Given the table T above, T(1,:) is another table containing the first row of T:
T(1,:) % returns a table
and T(:,1) is another table containing the first column of T:
T(:,1) % returns a table
In other words, subscripting a table using parentheses returns another table. To get the data out of a table, you can use curly brace subscripting. For example, to get the first column of table data:
T{:,1} % returns a numeric column vector, not a table
sum(T{:,1})
sz = [sum(T{:,1}) 4]
The "weird error that all inputs must be tables!" is due to trying to horizontally concatenate a table with a non-table, as in
[T(1,1) 4]
because T(1,1) is a table and 4 is not.
