Create an extra row in a table that show the means of all columns (but without any extra headings)

Hello, I have a table that I have created and display it in text area

This is my code:

params = ["ROI_L";"ROI_C";"ROI_R"];
tbl = table(params,FWHMX,FWHMY,FWHM2D,CenInt);
str = formattedDisplayText(tbl);
str = regexprep(str,'</?strong>','');
ReportMessage(app,str);            % My own function, see below

At the bottom I have attempted to add the means of each column by doing this:

   % Get Means
   M = varfun(@mean, tbl, 'InputVariables', @isnumeric);          
   M1=table2cell(M) 
   M1=[{'Mens:'},M1]  
   str = formattedDisplayText(M1)
   str = regexprep(str,'</?strong>','');
   ReportMessage(app,str);               % My own fucntion, see below
   

But its wrapping and not aligned to the table. The same thing happens if I DONT convert the table to a cell array via (as well as adding exctra headings

   M1=table2cell(M) 
   M1=[{'Mens:'},M1]    

This is how it looks without the table2cell step:

Is there a way in table format to get the means of the columns (but without any column header)

heres my report message function

    function ReportMessage(app,msg)
            currString=get(app.MessagesTextArea,'Value');
            %currString=[{char(msg)};currString];  %add to top of message box
            currString=[currString; {char(msg)}];  %add to bottom of message box
            app.MessagesTextArea.Value=currString;
            drawnow;
            scroll(app.MessagesTextArea,'bottom');
        end

[Walter Roberson]

Perhaps something like,

params = ["ROI_L";"ROI_C";"ROI_R"];
tbl = table(params,FWHMX,FWHMY,FWHM2D,CenInt);

M = ["Means", table2cell(varfun(@mean, tbl, 'InputVariables', @isnumeric))];
tbl{end,:} = M;

str = formattedDisplayText(tbl);
str = regexprep(str,'</?strong>','');

which should add a row with name "Means" to the end of the table.

[Jason]

Perfect Walter thankyou.

(I did have to change this

tbl{end,:} = M;  

to this

tbl{end+1,:} = M;

as it was overwriting my last row

Answer 1

[Chuguang Pan]

params = ["ROI_L";"ROI_C";"ROI_R"];
FWHMX = [3.09;3.14;3.36];
FWHMY = [3.00;2.92;2.88];
FWHM2D = [3.05;3.03;3.12];
CenInt = [217;212;162];

tbl = table(params,FWHMX,FWHMY,FWHM2D,CenInt);
meanTbl = mean(tbl(:,2:end));
meanTbl.params = "Mean";
newTbl = [tbl;meanTbl];

str = formattedDisplayText(newTbl,"NumericFormat","bank")

str = 
    "    params     FWHMX    FWHMY    FWHM2D    CenInt
         _______    _____    _____    ______    ______
     
         "ROI_L"    3.09     3.00      3.05     217.00
         "ROI_C"    3.14     2.92      3.03     212.00
         "ROI_R"    3.36     2.88      3.12     162.00
         "Mean"     3.20     2.93      3.07     197.00
     "

[Jason]

Thankyou

[Chuguang Pan]

@Jason you are welcome