MATLAB: Multiple y axes, one x axis

axesmultiplex axisy axis

Hello, I want to know how to do three y axis one next to one on left side with space.. My function and i want it that is everything on left side on y axis.
clc
clear all
close all
x=[5.93 5.65 4.91 4.28 3.77 3.25];
y1=[10.72 10.15 8.76 7.61 6.68 5.76];
y2=[62.5 50 41.25 31.25 25 17.5];
y3=[4.661 4.413 3.809 3.309 2.904 2.504];
figure;
ax1 = gca;
get(ax1,'Position')
pos_ax1 = get(ax1,'Position'); 
set(ax1,'XColor','k',...
  'YColor','b',...
  'YLim',[0,12],...
  'YTick',[0:1:12]);
ylabel('U_1_K [V]')
xlabel('I_1_K [A]')
line(x, y1, 'Color', 'b', 'LineStyle', '-', 'Marker', '.', 'Parent', ax1)
grid on
ax2 = axes('Position',get(ax1,'Position'),...
         'XAxisLocation','bottom',...
         'YAxisLocation','left',...
         'Color','none',...
         'XColor','k',...
         'YColor','r',...
         'YLim',[0,70],...
         'YTick',[0:5:70],...
         'XTick',[],'XTickLabel',[]);
     ylabel('P_1_K [W]')
 pos_ax2=pos_ax1-1;
line(x, y2, 'Color', 'r', 'LineStyle', '-', 'Marker', '.', 'Parent', ax2)
ax3 = axes('Position',get(ax1,'Position'),...
         'XAxisLocation','bottom',...
         'YAxisLocation','right',...
         'Color','none',...
         'XColor','k',...
         'YColor','magenta',...
         'YLim',[0,5],...
         'YTick',[0:0.5:5],...
         'XTick',[],'XTickLabel',[]);
     ylabel('u_K [%]')
line(x, y3, 'Color', 'g', 'LineStyle', '-', 'Marker', '.', 'Parent', ax3)
title('Prikaz merilnih rezultatov')
%
%figure 2
I_n = 5.435;
U_1_k=interp1(x,y1,I_n)
P_1_k=interp1(x,y2,I_n)
Thanks 🙂

Best Answer

Edit
x=0:0.5:10;
y1=0.1*sin(0.1*x);
y2=0.1*cos(0.1*x);
y3=0.1*cos(0.2*x);
%--------------------------------------------------------------------
xlab='time'               % x-axis title
pas=8;           % Number of ticks per axe
tail=8;             % font size
%----------------markers and color/graph----------------------------------
mark1='d',
c1='k'
mark2='<',
c2='b'
mark3='s',
c3='r'
%---------font name and size---------------------------------------------
fontname='courrier'
fontsize=9.2;
fontsize_ax=8;
% -----------your legend names--------------------------------------------
param1='leg1',
param2='leg2',
param3='leg3',
%-----------------y-axis titles----------------------------------------
paramm1='y1',
paramm2='y2',
paramm3='y3',
%----------------------------------------------plot y1---------------------
plot(x,y1,c1)
ax1=gca;
set(gcf,'position',[100 100 1300 550])
line(x,y1,'color',c1,'Marker',mark1,'LineStyle','none','Markersize',tail,'parent',ax1);
set(ax1,'Ylim',[min(y1) max(y1)],'Xlim',[0 max(x)]);
ylabel(paramm1)
xlabel(xlab)
set(ax1,'position',[0.16 0.11 0.73 0.8],'fontsize',fontsize_ax,'Ycolor',c1)
pos=double(get(ax1,'position'))
%----------------------------------------------plot y2---------------------
ax2=axes('position',pos, 'XAxisLocation','bottom','YAxisLocation','left', 'Color','none',  'XColor',c2,'YColor',c2);
plot(x,y2,c2);
line(x,y2,'color',c2,'Marker',mark2,'LineStyle','none','Markersize',tail,'parent',ax2);
set(ax2,'Ylim',[min(y2) max(y2)],'Xlim',[0 max(x)],'Visible','off')
%----------------------------------------------plot y3---------------------
axe3=axes('position',pos, 'XAxisLocation','bottom','YAxisLocation','left','Color','none', 'XColor',c2,'YColor',c2);
plot(x,y3,c3);
line(x,y3,'color',c3,'Marker',mark3,'LineStyle','none','Markersize',tail,'parent',axe3);
set(axe3,'Ylim',[min(y3) max(y3)],'Xlim',[0 max(x)],'Visible','off')
%---------------------------------------------------------ax12-------------
pos12=[0.11 pos(2) 0.001 pos(4)]
axe12=axes('position',pos12,'XAxisLocation','top','YAxisLocation','right',...
  'Color','none','fontsize',fontsize_ax, 'XColor',c2,'YColor',c2);
set(get(axe12,'XLabel'),'String',strvcat(' ',paramm2),'Fontname',fontname,'Fontsize',fontsize);
set(axe12,'Ylim',[min(y2) max(y2)])
inc2=abs(max(y2)-min(y2))/pas;
my=min(y2):inc2:max(y2);
set(axe12,'Ytick',my)
%---------------------------------------------------------ax13-------------
pos13=[0.07 pos(2) 0.001 pos(4)]
axe13=axes('position',pos13, 'XAxisLocation','top','YAxisLocation','right',...
  'Color','none','fontsize',fontsize_ax, 'XColor',c3,'YColor',c3);
set(get(axe13,'XLabel'),'String',strvcat(' ',paramm3),'Fontname',fontname,'Fontsize',fontsize)
set(axe13,'Ylim',[min(y3)   max(y3)])
inc3=(max(y3)-min(y3))/pas;
my=min(y3):inc3:max(y3);
set(axe13,'Ytick',my)
%------------------------------------------------legend-------------------
ax20=axes('position',pos, 'Color','none')
line(-100,100,'color',c1,'Marker',mark1,'LineStyle','-','markerfacecolor',c1,'Markersize',tail,'parent',ax20);
hold on;line(-100,100,'color',c2,'Marker',mark2,'LineStyle','-','markerfacecolor',c2,'Markersize',tail,'parent',ax20);
hold on;line(-100,100,'color',c3,'Marker',mark3,'LineStyle','-','markerfacecolor',c3,'Markersize',tail,'parent',ax20);
set(ax20,'Xlim',[0 1]);
set(ax20,'visible','off');
grid(ax1);
name={param1;param2;param3}
hleg=legend(ax20,name)
title(ax1,'figure1')
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