How to plot multiple graphs in one figure ?

I have two codes. Each code has four graphs. I want to plot two graphs in one figure. For example: Dead nodes vs Round graph of two should be in one figure. In the same way other graphs also. I tried hold on function but still not getting. How to merge the two codes in order to get the graphs ?

[Amit Bhowmick]

Hi sree,

The question is not clear. you can check with following modifications:

Mod: 1

figure (1);
hold
plot(r,STATISTICS.DEAD);
xlabel('Rounds');
ylabel('Dead Nodes');
title('MODLEACH');
%figure (2);
plot(r,STATISTICS.PACKETS_TO_BS);
xlabel('Rounds');
ylabel('Packets to BS');
title('MODLEACH');
%figure (4);
plot(r,STATISTICS.PACKETS_TO_CH);
xlabel('Rounds');
ylabel('Packets to CH')
title('MODLEACH');
%figure (5);
plot(r,STATISTICS.ALLIVE);
xlabel('Rounds');
ylabel('Allive nodes')
title('MODLEACH');

Mod: 2

If you are not getting two curve in a single figure using hold command then try to use it,

if(ishold==0)
    hold on;
end

[Amanda Liu]

There are other ways but I'm using subplot.

figure(1)
subplot(2,1,1) % 2 rows, 1 column, first position
plot(r,STATISTICS.DEAD);
title('Dead Nodes vs Rounds')
xlabel 'Rounds';
ylabel 'Dead Nodes';

subplot(2,1,2) % 2 rows, 1 column, second position
plot(r,STATISTICS.ALLIVE);
title('Live Nodes vs Rounds')
xlabel 'Rounds';
ylabel 'Live Nodes';

figure(2)
subplot(2,1,1) 
plot(r,STATISTICS.PACKETS_TO_BS);
title('Pkts to BS per round')
xlabel 'Rounds';
ylabel 'Pkts to BS ';

subplot(2,1,2)  
plot(r,STATISTICS.PACKETS_TO_CH);
title('Pkts to CH per round')
xlabel 'Rounds';
ylabel 'Pkts to CH ';

[Nghia Tran]

thank u

Answer 1

[Adam Danz]

> I want to plot two graphs in one figure

Options are

• subplot
• tiledlayout with nexttile - preferred, starting in R2019b

subplot(m,n,i) creates an axes in the i^th position of an m-by-n grid.

tiledlayout(m,n) creates an m-by-n grid upon which axes can be added using nexttile.

See documentation links for details.

Benefits to using tiledlayout

The following features are great improvements available in tiledlayout.

1. Flexible grid sizes (TileArrangment property)
2. Control spacing (TileSpacing and Padding properties, Community Highlight)
3. Row-wise or column-wise order of axes (TileIndexing property, Community Highlight)
4. Global labels such as a title, subtitle, xlabel and ylabel (labels properties)
5. Global legends, starting in R2020b (legend layout property, documentation example, more demos)
6. Global colorbars, starting in R2020b (colorbar layout property, documentation example, demo)
7. Specify the span of an axes within the grid using nexttile(span)

Demo

tcl = tiledlayout(2,3,'TileSpacing','compact');

nexttile
plot(magic(5))
axis tight

nexttile
scatter(rand(1,10), rand(1,10), 90, lines(10))
box on

nexttile([2,1])
imagesc(peaks(200))

nexttile([1,2])
histogram2(2*randn(1,1000), randn(1,1000), 'FaceColor', 'Flat')
cb = colorbar();
cb.Layout.Tile = 'south';

title(tcl, 'Global title')
xlabel(tcl, 'Global xlabel')
ylabel(tcl, 'Global ylabel')

[Stefan Bendisch]

Thank you. This function is a great help since it overcomes come limitations of subplot.

Answer 2

[Devanuj Deka]

It is my understanding that you want to plot two graphs in one figure. You tried hold on but it didn't work.

It is not clear whether you want both plots in the same graph, or both plots in separate graphs but in the same window. Below are the possible solutions for either of those which you can try. I've taken dead nodes v/s rounds and alive nodes v/s rounds for the plots.

1) hold on, hold off – both dead and alive nodes in the same plot, same figure

figure(1) 
plot(r,STATISTICS.DEAD); 
hold on; 
title('Nodes vs Rounds') 
plot(r,STATISTICS.ALLIVE); 
xlabel 'Rounds'; 
ylabel 'Nodes'; 
hold off; 
legend('Dead Nodes','Live Nodes','Location','best'); 

Documentation: hold

2) subplot – dead nodes and alive nodes in two separate plots, but in the same figure

figure(1) 
subplot(2,1,1) 
plot(r,STATISTICS.DEAD); 
title('Dead Nodes vs Rounds') 
xlabel 'Rounds'; 
ylabel 'Dead Nodes'; 
subplot(2,1,2) 
plot(r,STATISTICS.ALLIVE); 
title('Live Nodes vs Rounds') 
xlabel 'Rounds'; 
ylabel 'Live Nodes'; 

Documentation: subplot