MATLAB Answers

How to overlap time vectors and plot in multiple axis ?

2 views (last 30 days)
Jeevan Kumar Bodaballa
Jeevan Kumar Bodaballa on 21 Nov 2019
Answered: dpb on 22 Nov 2019
Here are my questions !
How can I add third Y-axis in same plot
Here in data 6 variables(dt,temptime,Tout,RHout,Sat,mix) are present and I would like have
dt & temptime variables in x-axis
Sat & RHout in yyleft axis
Tout in yyright axis
mix in yyright as third axis

  2 Comments

dpb
dpb on 21 Nov 2019
So what did you try and where did you have a problem?
Walter Roberson
Walter Roberson on 22 Nov 2019
Jeevan Kumar Bodaballa if you consider your question to be unclear, then as you are the person who asked the question, you should clarify the question.

Sign in to comment.

Accepted Answer

Ridwan Alam
Ridwan Alam on 21 Nov 2019
Edited: Ridwan Alam on 21 Nov 2019
Hope this helps:
fig=figure(1);
yyaxis left
plot(dt,Sat,'b--','Linewidth',2);
% hold on;
% plot(temptime(3470:3578),RHout(3470:3578),'b.','Linewidth',2);
ylabel('Saturation and RH');
hold on;
yyaxis right
plot(dt,mix,'r-','LineWidth',2);
hold on;
plot(temptime(3470:3578),Tout(3470:3578),'r.','LineWidth',2)
xlabel('Time (h)'); %
ylabel('Mixing ratio [Kg/Kg]');
set(gca, 'YScale', 'log');
grid on
untitled.jpg

  2 Comments

Ridwan Alam
Ridwan Alam on 22 Nov 2019
I don't think I have seen or known how to do anything like that. Sorry! I would like to know/learn if that's possible as well.
One way might be to rescale the 'Tout' data to the same scale as 'Mix' and plot it. Still I don't think you can assign two different ylabels to the same axis. But again, I might be wrong.
If you find out my answer is okay, please accept as an answer. If you liked the conversation, please vote up as well. Thanks!
dpb
dpb on 22 Nov 2019
There's not a function supplied with Matlab to have more than the left/right axis.
You either have to "roll your own" by shrinking the existing axis in the x direction enough and creating a new one or use one of the FEX submittals. I know there are some over there but I've not used any so can't recommend any particular one as the gold standard.

Sign in to comment.

Sign in to answer this question.