How can I make my values become positive?

I have array values and I need to know which command I should use to make my values become positive and how can I find the mean of all array values?

Thanks.

Answer 1

[Alfonso]

 % Example: 3x2 array
 myArray = [-1,-2;-3,2;-3,-4]; 

 % Make all values in array positive
  myArray = abs(myArray);

% Mean value of array
m = mean(myArray) % m returns a row vector where each column is the mean of each column of your array

% If you want a single mean value for all values of your array
% concatenate values in a single row
array = [myArray(:,1); myArray(:,2)];
m_all = mean(array);

for more info: https://es.mathworks.com/help/matlab/ref/mean.html

[Miriã Gollmann]

Thank you!

[Miriã Gollmann]

I really got it with this command. I produced two means, one of wind velocity on vector U and other of wind velocity on vector V. Now, do you know how can I put this values in a cell array?

[Alfonso]

% Save mean values in cell array
cellArray = {mean_U, mean_V};