Represent data with a status bar plot

Hello everyone!

I'm looking for a way to represent my data in the form of a status bar, the colour of which depends on the value.

The end result should look something like this

Does anyone know the function that plots something like this?

Answer 1

[Voss]

t = load('mydata.mat').mydata;

X = repmat(double(t.Time(:)),1,2);
C = repmat(double(t.Data(:)),1,2);
Y = zeros(size(X))+[0 1];

figure('Position',[1 1 900 600])
tiledlayout(2,2)

nexttile
plot(t.Time,t.Data)
xlim(t.Time([1 end]))
title(sprintf('line plot:\nentire timeseries'))

nexttile
plot(t.Time,t.Data)
xlim([0 40])
title(sprintf('line plot:\nzoomed to beginning'))

nexttile
surface(X,Y,C,'EdgeColor','none')
xlim(X([1 end],1))
ylim(Y(1)+[-0.5 1.5])
colorbar
title(sprintf('status-bar plot:\nentire timeseries'))

nexttile
surface(X,Y,C,'EdgeColor','none')
xlim([0 40])
ylim(Y(1)+[-0.5 1.5])
colorbar
title(sprintf('status-bar plot:\nzoomed to beginning'))

[Nicolas]

Amazing ! This perfectly meets our needs !

We just have to customize the colormap with the desired color, and add the enumared data

Thank you very much @Voss for the support !

[Voss]

You're welcome!

[Voss]

Here's one approach you can use to add the enumerated data (text objects):

t = load('mydata.mat').mydata;

X = repmat(double(t.Time(:)),1,2);
C = repmat(double(t.Data(:)),1,2);
Z = zeros(size(X));
Y = Z+[0 1];

[G,GID] = findgroups(t.Data);
NG = numel(GID);
XT = zeros(NG,1);
for ii = 1:NG
    XT(ii) = mean(t.Time(G == ii));
end
YT = (Y(1,1)+Y(1,2))/2*ones(NG,1);
ST = string(GID);
args = {'HorizontalAlignment','center','Color','w','FontSize',14};

figure('Position',[1 1 900 600],'Color',[0.94,0.94,0.94])
tiledlayout(2,1)

nexttile
surface(X,Y,Z,C,'EdgeColor','none')
text(XT,YT,ST,args{:})
xlim(X([1 end],1))
ylim(Y(1,:)+[-0.5 0.5])
colorbar
title(sprintf('status-bar plot:\nentire timeseries'))

nexttile
surface(X,Y,Z,C,'EdgeColor','none')
text(XT,YT,ST,args{:})
xlim([0 40])
ylim(Y(1,:)+[-0.5 0.5])
colorbar
title(sprintf('status-bar plot:\nzoomed to beginning'))

[Nicolas]

Great idea ! Here is the final result after including some text :

t = load('mydata.mat').mydata;
X = repmat(double(t.Time(:)),1,2);
C = repmat(double(t.Data(:)),1,2);
Z = zeros(size(X));
Y = Z+[0 1];
[G,GID] = findgroups(t.Data);
NG = numel(GID);
XT = zeros(NG,1);
ST_text = ["0 - a";"1 - b";"2 - c";"3 - d";"4 - e";"5 - f";"6 - g";"7 - h";"8 - i";"9 - j";"10 - k";"11 - l";"12 - m";"13 - n"; "14 - o"];

for ii = 1:NG
    XT(ii) = mean(t.Time(G == ii));
    enum_name(ii) = ST_text(GID(ii)+1);
end
YT = (Y(1,1)+Y(1,2))/2*ones(NG,1);

ST = enum_name;
args = {'HorizontalAlignment','center','Color','w','FontSize',14,'Rotation',90};
figure1 = figure('Position',[1 1 900 600],'Color',[0.94,0.94,0.94]);

surface(X,Y,Z,C,'EdgeColor','none')
text(XT,YT,ST,args{:})
xlim(X([1 end],1))
ylim(Y(1,:)+[-0.1 0.1])
clim([0 14])
colorbar('Ticks',[0 1 2 3 4 5 6 7 8 9 10 11 12 13],...
    'TickLabels',{'0 - a','1 - b','2 - c','3 - d','4 - e','5 - f','6 - g','7 - h','8 - i','9 - j','10 - k - l','12 - m','13 - n', '14 - o'},...
    'Location','southoutside');

(I've used a different data run, to make it easier to read)

Thank you again @Voss for your support !

Answer 2

[Aquatris]

You can use bar() function with 'stacked' argument;

 y = [30 50 10 10]; 
 barh(1,y,"stacked");

[Nicolas]

Hello @Aquatris and thank you for your reply!

Unfortunately I omitted some details in my request ... I work with timeseries, so I can't really use this method, I'd first have to determine the value groups (1,2,3 etc ...) before being able to display them in stacked bar.

[Aquatris]

I think you should provide your data and show exactly what you want.