add a row of summary statistics in a table

Suppose I have a table in Matlab:

https://imgur.com/a/GxZLIYI

Then I want to add a summary statistics (sum for the first col and average for the second col)

https://imgur.com/a/UeqdqAR

Then how shall I proceed?

Answer 1

[Voss]

t = table({'new york';'chicago'},[10;5],[17;18],'VariableNames',{' ','visitor','temperature'})

t = 2×3 table
                    visitor    temperature
    ____________    _______    ___________

    {'new york'}      10           17     
    {'chicago' }       5           18     

t(end+1,:) = {'' sum(t{:,'visitor'}) mean(t{:,'temperature'})}

t = 3×3 table
                    visitor    temperature
    ____________    _______    ___________

    {'new york'}      10            17    
    {'chicago' }       5            18    
    {0×0 char  }      15          17.5    

Answer 2

[the cyclist]

Here is one way:

% The table
T = table([10;5],[17;18],'VariableNames',{'visitor','temperature'},'RowNames',{'New York','Chicago'});

% Numeric variables for the mean
vars = {'visitor','temperature'};

% Calculate the mean
varsMean = mean(T{:,vars});

% Append mean to table, and change the RowNames property of that row
T{end+1,vars} = varsMean;
T.Properties.RowNames{end} = 'mean';

% Display
T

T = 3×2 table
                visitor    temperature
                _______    ___________

    New York       10           17    
    Chicago         5           18    
    mean          7.5         17.5    

[alpedhuez]

Thank you. But the first column is meant to be sum of elements.

[the cyclist]

Oh, sorry. I misread. Looks like you got an effectively equivalent answer.