Error using Plot, Vectors must be the same length

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NERANJEN S 2021-8-1

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https://ww2.mathworks.cn/matlabcentral/answers/890017-error-using-plot-vectors-must-be-the-same-length

评论： Scott MacKenzie 2021-8-1

采纳的回答： Scott MacKenzie

>> Height = [0;3;6;9;12;15];

>> for i = 1:5

subplot(1,5,i)

plot([0;v(:,i)], Height);

ylabel('Height of the structure (m)','FontSize',12);

title(['Mode Shape ',num2str(i)],'FontSize',18)

end

How to rectify this?!

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Chunru 2021-8-1

what is "v" in your code?

NERANJEN S 2021-8-1

@Chunru Here, v is a 3x3 matrix

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采纳的回答

Scott MacKenzie 2021-8-1

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/890017-error-using-plot-vectors-must-be-the-same-length#answer_758157

编辑：Scott MacKenzie 2021-8-1

Your vector Height has six elements, with 0 as the first element. Given this, your apparent effort to plot v vs. Height is causing the error because [0; v] and Height need to be the same length. The code below achieves this with test data for v (replace as necessary) The code also sets to length(Height) the number of iterations in the for-loop and the number of subplots (adjust as necessary).

% data given in question (6x1 vector)
Height = [0;3;6;9;12;15];
% test data (replace as needed)
v = rand(length(Height)-1,10);
for i = 1:length(Height)
    subplot(1,length(Height),i)
    plot([0; v(:,i)], Height);
    ylabel('Height of the structure (m)','FontSize',12);
    title(['Mode Shape ',num2str(i)],'FontSize',10)
end