Add a title to a table built with syntax - AUCtable = table(x, y, z)

I have built a table

AUCtable = table(x, y, z)

how do I print it out 'nicely' -- without getting ans = lots of information type of syntax??

display(AUCtable) and AUCtable prints out

AUCtable

2 new lines

numRows x numCols table

2 new lines

then the table

I could probably live with that -- if I could add a title -- and AUCtable.Properties.Description ='My title' does not work

Thanks

Answer 1

[Star Strider]

I am not exactly certain what you want as the end result.

Try this:

x = rand(5,1);                                          % Create Vector
y = rand(5,1);                                          % Create Vector
z = rand(5,1);                                          % Create Vector

T1 = table(x,y,z);                                      % Create Original Table
T2 = table(T1, 'VariableNames',{'My Title'});           % Create ‘Super Table’
get_x = T2.('My Title').x;                              % Retrieve Sample Data

producing:

T2 =

  5×1 table

               My Title           
       x          y          z    
    ______________________________

    0.25515     0.9368     0.00665
    0.16694    0.77852      0.8626
    0.19633    0.59893    0.011251
    0.60822     0.5609     0.95496
    0.59116    0.83691     0.97722

And of course:

    disp(T2)

also works, producing simply:

               My Title            
       x           y           z   
    _______________________________

    0.053157     0.68624    0.20949
     0.66566     0.39679    0.37425
      0.5316    0.019607    0.31304
     0.44307     0.53647    0.84004
     0.28418       0.883    0.24669

.

[Michael]

Nice try -- Your code works

However I get "My title" followed by 20 copies of [1×6 table]

-- I think because two of my columns are not numbers

Not clear what the problem is

as y = [false false false true true] ' and y = ['2' '2' '2' '2' '2']'; both work

WIll try to find out if I have a hidden non-printing character in there

[Star Strider]

Thank you!

I cannot experiment with your table.

Perhaps something like:

T = T(1,1:6)

would eliminate the duplicates.

[Michael]

I think I gone -- one-hack-too-far -- to get a little more speed rather than write a for loop <SMILE>

One of my variables is essentially this

y = repmat(' ',5, 1);

But using that syntax in your code works -- so I am probably doing something I am not recognizing I am doing

Time to walk away and have a beer -- and try in an hour

Thanks for your help

[Michael]

it is a matlab thing

This code makes T2 fail

x1 = x; y1 = y; z1 = z;

T1 = table(x, y, z, x1, y1, x1)

T2 = table(T1, 'VariableNames',{'My Title'}); ;

disp(T2)

[Walter Roberson]

No, T2 is not broken: you are just encountering a limitation on display of a table, that for numeric variables only 5 columns might be displayed (actual number of columns might depend upon the width of your command window.)

x = rand(5,1);                                          % Create Vector
y = rand(5,1);                                          % Create Vector
z = rand(5,1);                                          % Create Vector

x1 = x; y1 = y; z1 = z;
T1 = table(x, y, z, x1, y1, x1)

T1 = 5x6 table
       x           y           z           x1          y1         x1_1  
    ________    ________    ________    ________    ________    ________

    0.061799     0.21369     0.20443    0.061799     0.21369    0.061799
    0.044648     0.88702     0.19611    0.044648     0.88702    0.044648
     0.70321      0.9444     0.17765     0.70321      0.9444     0.70321
     0.39153     0.76507     0.72502     0.39153     0.76507     0.39153
     0.46799    0.054191    0.091939     0.46799    0.054191     0.46799

T2 = table(T1, 'VariableNames',{'My Title'});
disp(T2)

     My Title  
    ___________

    [1x6 table]
    [1x6 table]
    [1x6 table]
    [1x6 table]
    [1x6 table]

T1_5 = T1(:,1:5);
T2_b = table(T1_5, 'VariableNames', {'My Title'});
disp(T2_b)

                            My Title                        
       x           y           z           x1          y1   
    ________________________________________________________

    0.061799     0.21369     0.20443    0.061799     0.21369
    0.044648     0.88702     0.19611    0.044648     0.88702
     0.70321      0.9444     0.17765     0.70321      0.9444
     0.39153     0.76507     0.72502     0.39153     0.76507
     0.46799    0.054191    0.091939     0.46799    0.054191

[Star Strider]

I am not certain what the problem is (or was). I submitted an enhancement request asking that (1) the six-column table displays as it should, with the title displayed above the variable names as it does with the three-column table, and (2) that adding the option of a table title would be an interesting addition.

So while ‘T2’ does not display as you (or I) would like it to (all six columns with their variable names),

get_x = T2.('My Title').x;                              % Retrieve Sample Data

continues to work correctly, so all is not lost.

This was an interesting problem!

[Michael]

Thanks Walter -- I meant fail to display as I want -- rather than fail /crash

Answer 2

[Michael]

disp(AUTtable) -- and answered my own first question by mistake <GROAN>

Adding a title still defeats me