Introduce columns in a table- Variables

Hi, I want to introduce columns in a table, then I write Table.a but a is a variable string and I want that the column has the name of this string how I can do that???

[Patrick Brown]

is not possible no?

Answer 1

[Steven Lord]

This is possible using a slight variation of the cyclist's initial approach.

% Sample data
A = magic(4);

% Create the table to which you want to add data
T = array2table(A, 'VariableNames', {'first', 'second', 'third', 'fourth'})

% Define the new variable and the data it should contain
newvariable = 'fifth';
x = [20; 17; 8; 2];

% Add the new variable to the table T
T.(newvariable) = x

[Patrick Brown]

Thanks!!!

Answer 2

[the cyclist]

% Create the table
x = rand(3,1);
tbl = table(x);

% Create the string that contains the variable name
varString = 'x';

% Access that variable, using the string
tbl(:,varString)

[Patrick Brown]

thanks for the answer

it is really tricky I think because the thing I want maybe it is no possible

for example a='velocity' - a string and when I create a column in a table Table.a I want that the name will be Table.velocity

maybe it is no possible but thanks again

[the cyclist]

This is also possible:

% Create the string that contains the variable name
varString = {'velocity'};

% Create the table with the name
x = rand(3,1);

tbl = table(x,'VariableName',varString);