figure 4 Y axis with 1 x axis

Hi all

thank you for helping

i want to draw figure in matlab that has two main effect (temprature and effiency ) in Y axis in sides when X axis is same range

for example

x=[11 22 33 44 55];
y1E=[0.5506	0.5925	0.6212	0.6419	0.6573];  %Effeiceny 1
y1T=[43.7529	45.0284  45.9019	46.5297	46.9987];  %Temprature 1

when i use this

Ax=plotyy(x,y1E,x,y1T);
hy1=get(Ax(1),'ylabel');
hy2=get(Ax(2),'ylabel');
set(hy1,'string',' efficiency 1');
set(hy2,'string','Temperature1');
xlabel('Number ');

it gives me figure with 1x axis and 2 Y axis in both side

i want to add another Effeiceny and Temprature with same X and in same figure

y2E=[0.3	0.4	0.6	0.8	0.3];  %Effeiceny 2
y2T=[50	45  43	47	55];  %Temprature 2

how can i do that

thank you for this helping

[DGM]

For cases like this, I doubt plotyy() is the best thing to be using. If you're running R2016a or newer, you can probably try building the plot using yyaxis() instead; I'm not, so this is something I can't test for you.

Generally, in the case when one needs to do complicated plots with multiple coincident axes (e.g. axes in both metric and US customary units), it's best to build the figure by manually overlaying axes objects and working from there. For instance:

https://stackoverflow.com/questions/28634426/create-an-xy-plot-with-two-y-axis/28634655#28634655

Unsurprisingly, there are at least a few tools on the File Exchange which appear to address this inconvenience.

[mohammed hussein]

thank you very much for your comment , I found the best one untill now is using plot4y https://www.mathworks.com/matlabcentral/fileexchange/4425-ploty4-m

Answer 1

[ANKUR KUMAR]

You can use this function from the file exchange.

clc
clear
t=linspace(0,pi,100);
sinplot=sin(t);
cosplot=cos(t);
tanplot=tan(t);
linecolors={'r' [0 .5 0] 'b'};
h3i=plotNy(t,sinplot,1,t,cosplot,2,t,tanplot,3,...
    'Linewidth',1,'YAxisLabels',{'' '' ''},'XAxisLabel','Deg',...
    'LineColor',linecolors,...
    'FontSize',12,...
    'Fontname','TimesNewRoman',...
    'Grid','on',...
    'LegendString',{'Sin' 'Cos' 'Tan'});
for i=1:length(h3i.ax)
	set(h3i.ax(i),'ycolor',linecolors{i});	
end

[mohammed hussein]

thank you for your answer

it gives me this error

Error using set

Value must be a handle

Error in plotNy (line 435)

set(get(h_ax(i),'XAxis'),'Visible','off')

Error in Untitled (line 18)

h3i=plotNy(t,acc,1,...

[ANKUR KUMAR]

Are you using exactly the same code which I have shared, or have you made some changes?

[mohammed hussein]

No change al all, i used exactly the same code

[ANKUR KUMAR]

Which versionof MATLAB are you using? It is working perfectly fine in 2017b version.

[mohammed hussein]

thank you for answering again , i am using 2015a , also i have checked this code , it gives only gives 3Y , i want 4 Y axis . I found the best one untill now is using plot4y https://www.mathworks.com/matlabcentral/fileexchange/4425-ploty4-m , but still not working perfectly .

[ANKUR KUMAR]

You can modify the same code a little bit to plot 4 lines.

clc
clear
t=linspace(0,pi,100);
sinplot=sin(t);
cosplot=cos(t);
tanplot=tan(t);
sin_t_by_2_plot=sin(t/2);

linecolors={'r' [0 .5 0] 'b','m'};
h3i=plotNy(t,sinplot,1,t,cosplot,2,t,tanplot,3,t,sin_t_by_2_plot,4,...
    'Linewidth',1,'YAxisLabels',{'' '' '',''},'XAxisLabel','Deg',...
    'LineColor',linecolors,...
    'FontSize',12,...
    'Fontname','TimesNewRoman',...
    'Grid','on',...
    'LegendString',{'Sin' 'Cos' 'Tan','Sin x/2'});
for i=1:length(h3i.ax)
	set(h3i.ax(i),'ycolor',linecolors{i});	
end

[ANKUR KUMAR]

You can use addaxis function to plot from the file exchange.

clc
clear
x = 0:.1:4*pi;
plot(x,sin(x));
addaxis(x,sin(x-pi/3));
addaxis(x,sin(x-pi/2),[-2 5],'linewidth',2);
addaxis(x,sin(x-pi/1.5),[-2 2],'v-','linewidth',2);
addaxis(x,5.3*sin(x-pi/1.3),':','linewidth',2);

addaxislabel(1,'one');
addaxislabel(2,'two');
addaxislabel(3,'three');
addaxislabel(4,'four');
addaxislabel(5,'five');

addaxisplot(x,sin(x-pi/2.3)+2,3,'--','linewidth',2);
addaxisplot(x,sin(x-pi/1),5,'--','linewidth',2);

legend('one','two','three','four','five','three-2','five-2');

[mohammed hussein]

thank you very much