How to plot Box Plots of two arrays?

I am given an array called useAalarm that is a 21 x 144 array. They represent 21 days of 144 people. I had to find the number of female and male cohorts in the array. When I did so I found the sum of the useAlarm for females to be 1 x 74 and the sum of useAlarm to be 1 x 70. How do i got about plotting box plots for the two arrays when the arrays are of different size.

Answer 1

[BhaTTa]

@Delany MacDonald, to create box plots for two arrays of different sizes in MATLAB, you can simply concatenate the arrays into a single vector and use a grouping variable to distinguish between the two groups (males and females).

Refer to the code below:

% Create dummy data: 21 days, 144 people

useAlarm = randi([0, 1], 21, 144); % Random 0s and 1s

% Assume first 74 are females and next 70 are males

femaleIndices = 1:74;

maleIndices = 75:144;

% Sum alarm usage over 21 days for each person

alarmFemales = sum(useAlarm(:, femaleIndices), 1);

alarmMales = sum(useAlarm(:, maleIndices), 1);

% Concatenate the data

alarmData = [alarmFemales, alarmMales];

% Create a grouping variable

genderLabels = [repmat({'Female'}, 1, length(alarmFemales)), repmat({'Male'}, 1, length(alarmMales))];

% Plot the boxplot

figure;

boxplot(alarmData, genderLabels);

ylabel('Total Alarm Usage');

title('Comparison of Alarm Usage by Gender');