How to plot a graph with two different length vectors

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')
%}
 

Answer 1

[madhan ravi]

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')

[Ishara Nipuni]

Thank You so much. But I need to plot the entropy values( the values which are in y axis) with the corresponding image number as 1,2,3,4,5. Can you please help me on that?

[Ishara Nipuni]

Thank You so much. But I need to plot the entropy values( the values which are in y axis) with the corresponding image number as 1,2,3,4,5 and I only need to get a one line. Can you please help me on that?

I also tried the code shown below.

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 got the result that shown below after trying above code.

But I need to gget the values of X-axis as 1,2,3,4,5. Can you please help me on that? Thank you again.

[Ishara Nipuni]

Thank you so much for the help:-) This code worked correctly for more values :-):-):-):-):-):-)

[madhan ravi]

Anytime :) , make sure to accept and voting the answer if it helped