How to clear a particular figure and replace it with other

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Yash Phirke
Yash Phirke 2021-5-5
评论： Yash Phirke 2021-5-6
So I have got a curve f in green which I want to keep as it is. I have plot a blue circle over it. Now I want to clear this blue circle by keeping the green curve as it is and plot a new red circle over it. How should I do it?
clf
hold on
fplot(f,'g')
xlim([-1,3])
ylim([-2,2])
p1 = plot(0,0,'bo');
clf(p1,'reset')
p2 = plot(0,1,'ro');

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采纳的回答

VBBV
VBBV 2021-5-5
编辑：VBBV 2021-5-6
%f true
clf
hold all
fplot(f,'g')
xlim([-1,3])
ylim([-2,2])
f1 = figure
plot(0,0,'bo');
clf(f1,'reset')
plot(0,1,'ro');
Reset using figure handles
  2 个评论
VBBV
VBBV 2021-5-6
编辑：VBBV 2021-5-6
%if true
hold on
fplot(x^3-3*x,'g')
xlim([-1,3])
ylim([-2,2])
p1 = plot(0,0,'bo');
p1.YData = []
p1.XData = [];
plot(0,1,'ro');
Try this one instead. Ignore previous one

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