Place these commands in callback after loading the data_struct variable
% Convert structural array, data_struct, into a table
t = struct2table(data_struct);
% Read dates from table heading
dates = t.Properties.VariableNames;
% Convert to datetime
dates = datetime(dates,"Format","MMMMuuuu");
% Change datetime format
dates = datetime(dates,"Format","MMM-uuuu");
app.Slider.Limits = [1, length(dates)];
% app.Slider.MajorTicks = 1:1:length(dates);
% app.Slider.MajorTickLabels = string(dates);
app.Slider.MajorTicks = 1:5:length(dates); % you can adjust the increment to best suit your data
app.Slider.MajorTickLabels = string(dates(1:5:end));
app.Slider.MinorTicks = [];
imshow(data_struct.(t.Properties.VariableNames{app.Slider.Value}),"Parent",app.UIAxes)
For slider callback:
imshow(data_struct.(t.Properties.VariableNames{app.Slider.Value}),"Parent",app.UIAxes)
