How to add cell array as index in plot title

Hello all,

I have been trying to get cell array (as index) to be part of the plot title.

figure
tlo = tiledlayout (3,1);
data = {a, b, c}; 
title_s={50;25;10};

for i = 1:numel(data)
    t=title_s{i};
    ax = nexttile(tlo);
    histogram(ax, data{i},'BinWidth',1,'BinEdges',1:1:25)
    title(['Example\_' num2str(t) 'm (8H)'],FontSize=16);
    
end

When I add the line of title I got the error 'Unable to use a value of type string as an index.

Can anyone help to make it work?

Thanks a lot!

[Dyuman Joshi]

Seems to be working here (R2023b) and on my PC (R2021a) with random data -

Please share the data for a, b, and c so that we can run your code and reproduce the error.

figure
tlo = tiledlayout (3,1);
%data = {a, b, c}; 
title_s={50;25;10};
for i = 1:numel(title_s)
    t=title_s{i};
    ax = nexttile(tlo);
    histogram(ax, 25*rand(1,100),'BinWidth',1,'BinEdges',1:1:25)
    title(['Example\_' num2str(t) 'm (8H)'],FontSize=16);
end

[Yunwei]

Hi,

I attach the data l used. The MATLAB version l use is 2021b.

[Dyuman Joshi]

Even with the data you have attached, the code works here without any error -

Have you copied and pasted the right code?

load("data.mat")

tlo = tiledlayout(3,1);
title_s = {50;25;10};

for i = 1:numel(title_s)
    t=title_s{i};
    ax = nexttile(tlo);
    histogram(ax, 25*rand(1,100),'BinWidth',1,'BinEdges',1:1:25)
    title(['Example\_' num2str(t) 'm (8H)'],FontSize=16);
end

Answer 1

[Catalytic]

I suspect that the code you've shown us is not the code that produces the error. I suspect you did this instead -

figure
tlo = tiledlayout(3,1);
data = {randn(1,100),2,3}; 
title={50;25;10};

for i = 1:numel(data)
    t=title{i};
    ax = nexttile(tlo);
    histogram(ax, data{i},'BinWidth',1,'BinEdges',1:1:25);
    title(['Example\_' num2str(t) 'm (8H)'],FontSize=16);
    
end

Unable to use a value of type string as an index.

Answer 2

[Yunwei]

I close matlab then run the code again, and the error is gone.

So l guess the code is correct.

Thank you!