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I am trying to plot velocity vectors but they are not getting displayed in a single graph.How can I do that?

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Prachi Sharma
Prachi Sharma 2016-11-3
回答： Alexandra Harkai 2016-11-3
I have the following code and I want all my vectors to be displayed in a single graph.But my code gives different graph for every iteration.How can I make them to be displayed in single graph.
n_mat_cell=cell(nframes-1,1); % this stores the n vectors of each component in previous frame
for n=1:nframes-1
n_mat_cell{n}=zeros(2, nclusters(n)); % 2 x number of components in previous frame
for i=1:nclusters(n)
[~,indx]=max(res_cell{n}(i,:));
n_mat_cell{n}(1,i)=caCentroids{n+1}(1,indx)-caCentroids{n}(1,i);
n_mat_cell{n}(2,i)=caCentroids{n+1}(2,indx)-caCentroids{n}(2,i);
quiver( n_mat_cell{n}(1,i),n_mat_cell{n}(2,i))
end
end

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回答（1 个）

Alexandra Harkai
Alexandra Harkai 2016-11-3
hold on
% your code here
hold off
Where 'hold on' will 'Retain current plot when adding new plots' according to the Documentation, 'hold off' will turn the hold state off so new plots will clear existing plots.

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