vertical line on x axis
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subplot(1,3,2)
plot(a1,x1, 'black', a1, y1, 'r', a1,z1, 'b',LineWidth=5);
title('Consumption level, T=10')
xticks([0 1 2 3 4 5 6 7 8 9])
xticklabels({'0' '1' '2' '\color{red}S^*' '4' '5' '6' '7' '8' '9'})
ylim([60,90])![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1526326/image.jpeg)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1526326/image.jpeg)
How can I add vertical line at the level s* from 0 to the black line?
Thank you,
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채택된 답변
Voss
2023년 11월 1일
x = 3;
y = interp1(a1,x1,x);
line([x,x],[0,y])
댓글 수: 4
Sam Chak
2023년 11월 1일
All you have to do is to provide the data for a1 and x1. We will figure out what the issue is.
If both a1 and x1 are in the Workspace, then save them to a MAT-file, using this syntax
save('RaushanData', 'a1', 'x1')
Once completed, attach the MAT-file (RaushanData.mat) using the paperclip icon
.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1526486/image.png)
By the way, both approaches by @Voss and @Star Strider work when the all elements in the data are finite.
a1 = 0:9; % hypothetical data
a1e = [min(a1) max(a1)] % extrema of a1
x1 = linspace(8, 78, numel(a1)); % hypothetical data
x1e = [min(x1) max(x1)] % extrema of x1
xq = 3; % from S* mark (query point)
yq = interp1(a1e, x1e, xq); % interpolate
% Plot data (black line)
plot(a1, x1, 'black', LineWidth=5);
xticks([0 1 2 3 4 5 6 7 8 9])
xticklabels({'0' '1' '2' '\color{red}S^*' '4' '5' '6' '7' '8' '9'})
hold on
% Plot vertical line (red)
plt = line([xq, xq], [0, yq]); % primitive line drawing
plt.LineWidth = 5;
hold off
title('Consumption level, T=10')
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