Problem setting axis label dimensions

I would like to have a plot with two y-axes with their labels of the same dimension (24 points).

I am using this code:

figure1=figure('Color','White','Position',[1,41,1000,600],'Renderer', 'Painters')

%Label sizing
size_labels=24;
legend_label=13;
ticks_label_size=12;

%Primary axis plot 
plot(age,t_set_avg,'LineWidth',1.2,'Color', [0.9290, 0.6940, 0.1250]);
hold on
ylabel('Air temperature [°C]','Fontsize',size_labels,'Fontweight','bold');

%Secondary axis plot
yyaxis right
plot(age,weight,'--','LineWidth',1.2,'Color',[0.4, 0.4, 0.4]);
a = get(gca,'XTickLabel');  
set(gca,'XTickLabel',a,'fontsize',ticks_label_size,'YColor','k');
xlabel('Days of production cycle','Fontsize',size_labels,'Fontweight','bold');
ylabel('Broiler live weight [kg]','Fontsize',size_labels,'Fontweight','bold');

%Legend
legend('\theta_{set\_opt}','\theta_{set\_H}','Fontsize',legend_label);

When I check on the Property Inspector, the size of the label of secondary y-axis is 24 points (as I set) but the primary on is 13.2 points.

Where is my mistake?

Thank you for your help

Answer 1

[ANKUR KUMAR]

figure1=figure('Color','White','Position',[1,41,1000,600],'Renderer', 'Painters')
size_labels=24;
legend_label=13;
ticks_label_size=12;

plot([1:25],randi(10,1,25),'LineWidth',1.2,'Color', [0.9290, 0.6940, 0.1250]);
hold on
ylabel('Air temperature [°C]','Fontsize',size_labels,'Fontweight','bold');
yyaxis right
plot([1:25],randi(10,1,25),'--','LineWidth',1.2,'Color',[0.4, 0.4, 0.4]);
xlabel('Days of production cycle','Fontsize',size_labels,'Fontweight','bold');
ylabel('Broiler live weight [kg]','Fontsize',size_labels,'Fontweight','bold');
legend({'\theta_{set\_opt}','\theta_{set\_H}'},'location','best','FontSize',legend_label);

Below code gives the fontsize of both ylable, and both having the same fontsize as 24.

yyaxis left
left_axis=get(gca,'ylabel');
left_axis.FontSize
yyaxis right
right_axis=get(gca,'ylabel');
right_axis.FontSize

[Andrea Costantino]

Thank you Ankur!

The problem was this part of my code that I used to set the size of the TickLabels

a = get(gca,'XTickLabel');  
set(gca,'XTickLabel',a,'fontsize',ticks_label_size,'YColor','k');

I eliminated those lines (as yiu did in your code) and the ylabels size is now correct.

I think that, hence, my real problem is to set TickLabels without interfere with ylabels....do you have any suggestion?

[ANKUR KUMAR]

Refer this complete code to set ticklabel font size.

clc
clear
figure1=figure('Color','White','Position',[1,41,1000,600],'Renderer', 'Painters')


size_labels=14;
legend_label=12;
ticks_label_size=30;


plot([1:25],randi(10,1,25),'LineWidth',1.2,'Color', [0.9290, 0.6940, 0.1250]);
hold on
ylabel('Air temperature [°C]','Fontsize',size_labels,'Fontweight','bold');
yyaxis right
plot([1:25],randi(10,1,25),'--','LineWidth',1.2,'Color',[0.4, 0.4, 0.4]);


xlab=xlabel('Days of production cycle','Fontsize',size_labels,'Fontweight','bold');
ylabel('Broiler live weight [kg]','Fontsize',size_labels,'Fontweight','bold');
legend({'\theta_{set\_opt}','\theta_{set\_H}'},'location','best','FontSize',legend_label);

ax=gca;
ax.XAxis.FontSize = ticks_label_size;
xlab.FontSize=size_labels;

yyaxis left
left_axis=get(gca,'ylabel');
left_axis.FontSize
yyaxis right
right_axis=get(gca,'ylabel');
right_axis.FontSize
ax.XAxis.FontSize

[Andrea Costantino]

Thank you, I have just tried but it seems to me that the ticklabel font size does not change changing the value of the ticks_label_size variable. According to the Property Inspector it remains 10 pt.

[ANKUR KUMAR]

Updated the code in this comment https://www.mathworks.com/matlabcentral/answers/774012-problem-setting-axis-label-dimensions#comment_1395467

I hope it works. I cross checked the results.

[Andrea Costantino]

Yes it works perfectly.

Thank you so much!

[Adam Danz]

Cleaner:

yyaxis left
plot(__)
yl(1) = ylabel('Air temperature [°C]','Fontweight','bold');

yyaxis right
plot(__)
a = __
set(__)
xlabel(__)
yl(2) = ylabel('Broiler live weight [kg]','Fontweight','bold');

legend(__)
set(yl,'FontSize',24)