How to add lines in my plot?

Question

Emmanouil - Nektarios Kalligeris 2016-5-6

0
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https://ww2.mathworks.cn/matlabcentral/answers/282915-how-to-add-lines-in-my-plot

评论： Emmanouil - Nektarios Kalligeris 2016-5-6

Hello. I have a plot and i want to display two lines ,one horizontal and one vertical ,so that both of them begin from 0. How can i do it?

My script:

plot(X(:,1),X(:,2),'ob',Y(:,1),Y(:,2),'or',0,0,'-k');
        h = legend(wew3,wew4,2);
        text(X(:,1)+.002,X(:,2)+.002,labels1,'Color',[0 0 1]);
        text(Y(:,1)+.002,Y(:,2)+.002,labels2,'Color',[1 0 0]);
        title('Plot'); 
        xlabel(['1 ' num2str(1)';]);
        ylabel(['2' num2str(2)';]);