# How can I selectively hold on and hold off plots in a polar plot

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Vinod am 13 Jan. 2015
Beantwortet: David Sanchez am 13 Jan. 2015
I have a for loop like this:
figure;
for i = 1:100
p1 = polar(thetaOne(i),rOne(i),'r+')
% *hold on* the above plot
p2 = polar(thetaTwo(i),rTwo(i),'g+')
% *hold off* the above plot
end
I have to retain the p1 and remove p2 from every iteration.
Suppose at i == 50, all the values thetaOne(1:50),rOne(1:50) must be there in the figure, and only thetaTwo(50),rTwo(50) must be present in the figure.
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### Akzeptierte Antwort

David Sanchez am 13 Jan. 2015
Then, you have to do this:
figure;
for i = 1:100
for k=1:i
p1 = polar(thetaOne(k),rOne(k),'r+')
hold on
end
p2 = polar(thetaTwo(i),rTwo(i),'g+')
hold off
end
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### Weitere Antworten (1)

Stephen23 am 13 Jan. 2015
Bearbeitet: Stephen23 am 13 Jan. 2015
If you read the documentation for hold you will find that the following syntaxes are permitted:
hold one
hold off
hold all
hold
hold(ax,'on')
hold(ax,'off')
hold(ax)
So you can supply the axes handle (using the function form), and it will control only that axis.
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