How to equally stretch horizontal bars?

I am using the following matlab code available on mathworks for making horizontal bars. dataStart = [1, 2, 3, 4; 4, 5, 6, 7; 7, 8, 9, 10]; % Start of range for each group dataEnd = [2,3,4,5; 5,6,7,8; 8,9,10,11]; % categories = 1:3; groups = {'group1', 'group2', 'group3', 'group4'}; [numCategories, numGroups] = size(dataStart); h = zeros(1, numGroups); % Plotting ranges for i = 1:numGroups for j = 1:numCategories lineHandle = plot([dataStart(j,i), dataEnd(j,i)], [categories(j), categories(j)], ... 'Color', colors(i,:), 'LineWidth', 15); if j == 1 % Save the handle for the first line of each group for the legend h(i) = lineHandle; end end end the plot generated by above code is also attached. May I request matlab community to suggest me how to equally increase (equal length of each color) and touch the right y-axis. I would appreciate your kind help to suggest me how to do it. Dave

Answer 1

[Voss]

Here's your code, with formatting applied and a hold on included and the colors variable defined:

dataStart = [1, 2, 3, 4; 4, 5, 6, 7; 7, 8, 9, 10]; % Start of range for each group
dataEnd = [2,3,4,5; 5,6,7,8; 8,9,10,11];
categories = 1:3;
groups = {'group1', 'group2', 'group3', 'group4'};
colors = [1 0 0; 0 1 0; 0 0 1; 1 1 0];
[numCategories, numGroups] = size(dataStart);
h = zeros(1, numGroups);
% Plotting ranges
figure
hold on
for i = 1:numGroups
    for j = 1:numCategories
        lineHandle = plot([dataStart(j,i), dataEnd(j,i)], [categories(j), categories(j)], ... 
            'Color', colors(i,:), 'LineWidth', 15);
        if j == 1 % Save the handle for the first line of each group for the legend
            h(i) = lineHandle;
        end
    end
end

To increase the length of the lines so that each category's lines go to 11:

dataStart = [1, 2, 3, 4; 4, 5, 6, 7; 7, 8, 9, 10]; % Start of range for each group
dataEnd = [2,3,4,5; 5,6,7,8; 8,9,10,11];

[numCategories, numGroups] = size(dataStart);

w = (max(dataEnd(:))-dataStart(:,1))/numGroups;
dataStartPlot = dataStart(:,1)+w.*(0:numGroups-1);
dataEndPlot = dataStartPlot+w;

categories = 1:3;
groups = {'group1', 'group2', 'group3', 'group4'};
colors = [1 0 0; 0 1 0; 0 0 1; 1 1 0];
h = zeros(1, numGroups);
% Plotting ranges
figure
hold on
for i = 1:numGroups
    for j = 1:numCategories
        lineHandle = plot([dataStartPlot(j,i), dataEndPlot(j,i)], [categories(j), categories(j)], ... 
            'Color', colors(i,:), 'LineWidth', 15);
        if j == 1 % Save the handle for the first line of each group for the legend
            h(i) = lineHandle;
        end
    end
end

[Devendra]

Thank you very much for your kind help. I am attaching the figure and request you to kindly have a look on it and suggest me , how to stretch the second and third horizontal bars to start from the april and may months respectively as given in x-axis?

I appreciate your kind cooperation.

Deva

[Voss]

You're welcome!

I guess all you need to do is to change the value of dataStart.