add a row of summary statistics in a table

2 views (last 30 days)
alpedhuez
alpedhuez on 18 Jun 2022
Commented: the cyclist on 18 Jun 2022
Suppose I have a table in Matlab:
Then I want to add a summary statistics (sum for the first col and average for the second col)
Then how shall I proceed?

Accepted Answer

Voss
Voss on 18 Jun 2022
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

More Answers (1)

the cyclist
the cyclist on 18 Jun 2022
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
  2 Comments
the cyclist
the cyclist on 18 Jun 2022
Oh, sorry. I misread. Looks like you got an effectively equivalent answer.

Sign in to comment.

Tags

Products


Release

R2022a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by