How to plot a graph with two different length vectors

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Ishara Nipuni 2018-11-25

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https://ww2.mathworks.cn/matlabcentral/answers/431802-how-to-plot-a-graph-with-two-different-length-vectors

评论： madhan ravi 2018-11-25

采纳的回答： madhan ravi

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Hi,

I need to plot a graph using two datasets which have two different length values. I tried to get the graph with the use of the code I have shown below. But I got an error message as I have shown below the code.

Please someone help me. Thank you !

Entropy_Value =[7.61572,7.56676,6.25456,5.45656,7.32154]; % Y-axis values
Image_Number =[1,2,3,4,5]; % X-axis values
i=0.01:0.001:0.02;
plot(i,Entropy_Value,'b--*',i,Image_Number,'r--o')
%{
Error using plot
Vectors must be the same length.
Error in graph2 (line 4)
plot(i,Entropy_Value,'b--*',i,Image_Number,'r--o')
%}
 

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采纳的回答

madhan ravi 2018-11-25

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https://ww2.mathworks.cn/matlabcentral/answers/431802-how-to-plot-a-graph-with-two-different-length-vectors#answer_348755

编辑：madhan ravi 2018-11-25

在 MATLAB Online 中打开

Use linspace to create points with equal instances

Entropy_Value =[7.61572,7.56676,6.25456,5.45656,7.32154]; % Y-axis values
Image_Number =[1,2,3,4,5]; % X-axis values
i=linspace(0.01,0.02,numel(Entropy_Value));
plot(i,Entropy_Value,'b--*',i,Image_Number,'r--o')