two legends in the same box

Question

Babu Sankhi 2021-4-6

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/794307-two-legends-in-the-same-box

编辑： Adam Danz 2021-4-7

Hello,

I want the legends which belong to two y axes in the same box but it only displays one set of legend belonging to only one

(red) y axes . Can you help me more ? I want blue ones on the right.

thank you

fig=figure(15);
left_color = [1 0 0];
right_color = [0 0 1];
set(fig,'defaultAxesColorOrder',[left_color; right_color]);
yyaxis left
plot (Ms(1:4,3),Ms(1:4,4)*1000,'ro');hold on
plot (Ms(5,3),Ms(5,4)*1000,'r*')
plot (Ms(6,3),Ms(6,4)*1000,'rs')
plot (Ms(7:8,3),Ms(7:8,4)*1000,'rd')
legend('2 s','2 io','2o','2lo')
xlabel('An (hr)')
ylabel('M (A)')
yyaxis 'right'
plot (Ms(1:4,3),Ms(1:4,5)/1000,'bo')
plot (Ms(5,3),Ms(5,5)/1000,'b*')
plot (Ms(6,3),Ms(6,5)/1000,'bs')
plot (Ms(7:8,3),Ms(7:8,5)/1000,'bd');hold off
legend('2 s','2 io','2o','2lo')
ylabel('µ(T)')
xlim([0.5 4.5])
set(gca,'FontSize',18)
set(gcf,'Position',[100 100 600 500])

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Answer 1

Adam Danz 2021-4-6

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/794307-two-legends-in-the-same-box#answer_668687

在 MATLAB Online 中打开

Ms = randi(10,10,10);

fig=figure(15);

left_color = [1 0 0];

right_color = [0 0 1];

set(fig,'defaultAxesColorOrder',[left_color; right_color]);

yyaxis left

plot (Ms(1:4,3),Ms(1:4,4)*1000,'ro','DisplayName', '2 s');

hold on

plot (Ms(5,3),Ms(5,4)*1000,'r*', 'DisplayName', '2 io')

plot (Ms(6,3),Ms(6,4)*1000,'rs', 'DisplayName', '2o')

plot (Ms(7:8,3),Ms(7:8,4)*1000,'rd', 'DisplayName', '2lo')

% legend('2 s','2 io','2o','2lo')

xlabel('An (hr)')

ylabel('M (A)')

yyaxis 'right'

plot (Ms(1:4,3),Ms(1:4,5)/1000,'bo','DisplayName', '2 s');

plot (Ms(5,3),Ms(5,5)/1000,'b*', 'DisplayName', '2 io')

plot (Ms(6,3),Ms(6,5)/1000,'bs', 'DisplayName', '2o')

plot (Ms(7:8,3),Ms(7:8,5)/1000,'bd', 'DisplayName', '2lo');

hold off

% legend('2 s','2 io','2o','2lo')

ylabel('µ(T)')

xlim([0.5 4.5])

set(gca,'FontSize',18)

set(gcf,'Position',[100 100 600 500])

legend('NumColumns',2)

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Babu Sankhi 2021-4-7

编辑：Babu Sankhi 2021-4-7

在 MATLAB Online 中打开

Thanks

Adam Danz 2021-4-7

编辑：Adam Danz 2021-4-7

在 MATLAB Online 中打开

You need to change the fontsize of the legend but this will affect the fontsize of all strings in the legend.

legend(___,'FontSize', __)

I don't know whether it's possible to specify the fontsize of single legend strings. There certainly is not a documented approach for that. When it comes to this level of detail, I usually assign labels in programs outside of Matlab (ie, powerpoint).

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