have change values for x axis

THe code I have is below. I am trying to get the x axis to read something different for each box plot. Right now they say 1,2,3,4 I would like them to say (MISTY, rater one, rater two, rater three)How would I change this????

data = readcell('ratings.csv');
% Collect the participant numbers
participants = cell2mat(data(2:end, 1));
participants = unique(participants);
% Iterate through each participant, calculating the accuracy of each rater
accuracies = zeros(length(participants), 3);
for i = 1:length(participants)
    rows = [false; cell2mat(data(2:end, 1)) == participants(i)];
    participant_data = data(rows, :);
    
    ground_truth = cell2mat(participant_data(:, 8));
    misty = cell2mat(participant_data(:, 4));
    ayan = cell2mat(participant_data(:, 5));
    deandre = cell2mat(participant_data(:, 6));
    naomi = cell2mat(participant_data(:, 7));
    accuracies(i, 4) = sum(misty == ground_truth) / length(ground_truth);
    accuracies(i, 1) = sum(ayan == ground_truth) / length(ground_truth);
    accuracies(i, 2) = sum(deandre == ground_truth) / length(ground_truth);
    accuracies(i, 3) = sum(naomi == ground_truth) / length(ground_truth);
    
    
end
figure
boxchart(accuracies)
title('Accuracy');
ylabel('Rating')

Answer 1

[Adam Danz]

Set the xgroupdata argument in boxchart.

Since you're using a matrix of ydata values, you'll need to replicate the vector of labels to match the size of the matrix.

accuracies = rand(100,4); 
labels = ["MISTY", "rater one", "rater two", "rater three"];
cats = categorical(labels,labels);

cats = repmat(cats,height(accuracies),1); 
boxchart(cats(:),accuracies(:))