You can add a new table variable by using either dot notation or the "addvars" function. Dot notation adds new variables to the end of table. If you use the "addvars" function, then you can choose the location of the new table variable.
For example, this code creates a table and two column vectors. Then it adds the column vectors to the table as new variables.
LastName = ["Sanchez";"Johnson";"Li";"Diaz";"Brown"];
Age = [38;43;38;40;49];
Smoker = logical([1;0;1;0;1]);
T = table(LastName,Age,Smoker);
T.NewData = rand(5,1) % Dot notation adds new variable to end of table
MoreData = rand(5,1);
T = addvars(T,MoreData,'Before',1) % Add variable to beginning of table
If you generate a table variable name by evaluating an expression, you can pass it as the name of the new variable with either of these syntaxes.
TodaysData = "Data " + string(datetime("today"));
T.(TodaysData) = rand(5,1)
YesterdaysData = "Data " + string(datetime("today") - 1);
T = addvars(T,rand(5,1),'NewVariableNames',YesterdaysData,'Before',1)
For more information, see the following documentation:
Add, Delete, and Rearrange Table Variables
https://www.mathworks.com/help/matlab/matlab_prog/add-and-delete-table-variables.html
