shade area between graphs
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Michiel
il 28 Feb 2015
Commentato: William Rose
il 17 Apr 2024
I want to shade the area between these graphs
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/147372/image.png)
but this certainly does not do the trick:
fill([t t(end:-1:1)],[y1 y2(end:-1:1)],'y')
I also downloaded and tried "jblill"
but that did not seem to amend the outcome so far
2 Commenti
Huijian Huang
il 15 Dic 2017
have you solve this problem at the end? I am also struggling with similar situation
Image Analyst
il 15 Dic 2017
Yes, there were answers below, one of which he accepted though both should work.
Risposta accettata
Image Analyst
il 28 Feb 2015
Try using fill() instead of area():
x = 1 : 300;
curve1 = log(x);
curve2 = 2*log(x);
plot(x, curve1, 'r', 'LineWidth', 2);
hold on;
plot(x, curve2, 'b', 'LineWidth', 2);
x2 = [x, fliplr(x)];
inBetween = [curve1, fliplr(curve2)];
fill(x2, inBetween, 'g');
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/173588/image.png)
13 Commenti
Jason Thomas
il 29 Feb 2024
Hoping this post from 9 years ago is still monitored.
I tried the suggestion above, but instead of filling the area green, it just added thin black lines at the upper and lower bounds. What am I missing?
plot(averageFF2W5I(:,2),averageFF2W5I(:,1), 'k', 'LineWidth', 2);
plot(averageFF2W5I(:,2),averageFF2W5I(:,[8 9]), 'k--', 'LineWidth', 2);
fill([averageFF2W5I(:,2), fliplr(averageFF2W5I(:,2))], [averageFF2W5I(:,8), fliplr(averageFF2W5I(:,9))], 'g');
averageFF2W5I(:,2) = Strain Values
averageFF2W5I(:,1) = Stress Sample Mean
averageFF2W5I(:,[8 9]) = 95% Confidence Interval
William Rose
il 17 Apr 2024
I don't have your array, so I will use analogous data.
x=0:20; y=x.^.5; ci1=0.8*y; ci2=1.2*y;
fill([x, fliplr(x)], [ci1, fliplr(ci2)], 'g', EdgeColor='none');
hold on
plot(x,y, 'k', 'LineWidth', 2)
plot(x,[ci1;ci2], 'k--', 'LineWidth', 2)
I moved fill() before plot(), so that the line in the middle would not get covered by the fill. Alternatively, you could specify a semitransparent fill. I specified no edge for the fill. I added hold on after fill().
Più risposte (3)
Star Strider
il 28 Feb 2015
Modificato: Star Strider
il 28 Feb 2015
Try this:
x = linspace(0,10*pi);
y1 = sin(x);
y2 = cos(x);
figure(1)
plot(x, y1)
hold on
plot(x, y2)
patch([x fliplr(x)], [y1 fliplr(y2)], 'g')
hold off
Experiment with your data to get the result you want.
10 Commenti
Jason Thomas
il 29 Feb 2024
@Star Strider THANK YOU!
There were several NaN values in the confidence interval. Once I removed those with rmmissing and used your code with "flip" instead of "fliplr" it worked perfectly.
Javier Montalt Tordera
il 12 Apr 2019
The syntax for the above problem would be:
shade(t,y1,t,y2,'FillType',[1 2;2 1]);
The FillType option specifies that the area between lines 1 and 2 should be filled, whether 1 is above 2 or the other way round.
5 Commenti
Image Analyst
il 19 Mag 2022
@Giacomo Giuliani, yes though to not cover the line plots you might plot (or re-plot) the line plots after you've plotted the patches between the curves.
Giacomo Giuliani
il 19 Mag 2022
Modificato: Giacomo Giuliani
il 19 Mag 2022
It came to my minds one second after I posted. It works! Thanks.
Adam Danz
il 29 Gen 2024
Another solution that may be helpful is the fillBetweenAreaCurve function offered by the MATLAB Charting team on the File Exchange.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1603396/image.png)
1 Commento
Les Beckham
il 29 Feb 2024
FYI - it appears that this File Exchange utility requires the Mapping Toolbox.
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