Asked by Luan Gloria
on 14 Feb 2019 at 10:38

Dear MatLab community members,

Let's say I have two vectors, A and B, with ten entries each. B = A*2; Let's say that A=1:1:10;

I want to plot A and B, but instead of ploting circles, crosses etc, I want to plot the index numbers of A and B to show that the content in the position 1 of A is doubled in B. In the picture below I show what I want:

The red dots are the two first entries of vector A, and the blue dots are the two first entries of vector B, however, I cannot correlate these dots among each other (let's say I have a more complicated relationship between A and B, this relation would not be that easily seen). What I want to obtain, is a graph with the vector indexes as in the right side of the graph. Thank you!

Answer by Mark Sherstan
on 14 Feb 2019 at 14:11

The following should get you going in the right direction. If you need more help please post your actual data set.

x = [1 2 3]

y = [4 5 6]

plot(x,y,'.','MarkerEdgeColor','w')

xlim([0 5])

ylim([0 10])

for ii = 1:length(x)

t = text(x(ii),y(ii),num2str(ii));

t.Color = [1 0 0];

end

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## 2 Comments

## madhan ravi (view profile)

Direct link to this comment:https://www.mathworks.com/matlabcentral/answers/444937-how-to-plot-index-number-of-a-data-in-the-graph#comment_671213

## Luan Gloria (view profile)

Direct link to this comment:https://www.mathworks.com/matlabcentral/answers/444937-how-to-plot-index-number-of-a-data-in-the-graph#comment_671268

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