How do I stack an array variable and plot three of these stacked array variables on a barh? - matlab

Question

% S
a1 = [2015/07/23 2015/11/25 2016/01/20];
b1 = [2011/06/22 2014/10/14 2015/03/01];
c1 = [2012/04/16 2013/06/23 2015/04/08];
d1 = [2013/09/15 2014/01/19 2016/09/13];
e1 = [2015/04/01 2016/04/04 2018/08/04];
% H
a2 = [2012/07/23 2015/06/25 2016/05/20];
b2 = [2009/06/22 2014/09/14 2015/11/01];
c2 = [2006/04/16 2013/12/23 2015/06/08];
d2 = [2008/09/15 2014/05/19 2016/02/13];
e2 = [2011/04/01 2016/05/04 2018/03/04];
% HS
a3 = [2009/07/23 2010/06/25 2018/02/20];
b3 = [2011/06/22 2014/07/14 2016/09/01];
c3 = [2013/04/16 2016/09/23 2019/05/08];
d3 = [2013/09/15 2018/05/19 2019/06/13];
e3 = [2014/04/01 2019/01/04 2019/12/04];
% T
t = [1 2 3 4 5];
dates = [a1 a2 a3; b1 b2 b3; c1 c2 c3; d1 d2 d3; e1 e2 e3];
% Plotted
figure
barh(t, dates, 'hist')
title('Script')
xlabel('Time')
ylabel('Tail')
legend({'S','H','HS'})
legend('Location', 'southoutside')
legend('Orientation','horizontal')
If you plot this, you will notice that there are 9 bar graphs associated with each 't'. There should be only three as stated in the 'dates' variable per t. How do I stack 'a1,a2,a3, then b1,b2,b3 ...... and e1,e2,e3 each individually' to accomplish this feat?
My script result:
What I want the output to look like
Note: 1. The y axis contains the 5 different elements 't'
2. The x axis should contain the date elements 'dates'
3. When you plot these values, there are 9 bars. There should be three per
't'.
4. On the x axis, I would like to have the dates represented.
5. I would like to eventually be able to create a user prompted system that
allows people to enter in dates for a corresponding array, and have that
date be stacked onto the chart.
The following bit of code does a bit of what I ask for but with the bars stacked vertically not horizontally, and also takes in different user inputs.
https://www.mathworks.com/matlabcentral/fileexchange/32884-plot-groups-of-stacked-bars

Answer 1

You are very close to a solution. Download that file from MATLAB file exchange, open it, replace bar with barh, you got your own horizontally stacked bar plot.
Your input does not fit the expected format, the function expects a 3d matrix. A minor change to your code:
dates = [cat(3,a1,a2,a3);cat(3,b1,b2,b3); cat(3,c1,c2,c3); cat(3,d1,d2,d3); cat(3,e1,e2,e3)];
plotBarHStackGroups(dates,t)