Why won't my script (using for loops) loop and plot all 3 values?

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Charlotte Davies
Charlotte Davies 2017-4-6
回答： KSSV 2017-4-6
My script is supposed to plot three graphs, each using a value of k, and loop through these values. Once run, it should plot a graph and then be able to produce the other two graphs subsequently (when any key is pressed). However, it currently remains 'paused' and no graph is produced. What should I do? Here is my script:
for k = [2.9, 3.5, 3.9]
%clear figure, and the vector a
clf; clear a;
%set up vector a, a_1 = 0.5
a = zeros(1,50);
a(1) = 0.5;
for n = 2:50
a(n) = k*a(n-1)*(1-a(n-1))
end
plot(a);
title(['k=',num2str(k)]);
%pauses the loop and waits
% for any key press to continue
pause;
end

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回答（1 个）

KSSV
KSSV 2017-4-6
figure
hold on
for k = [2.9, 3.5, 3.9]
%clear figure, and the vector a
%set up vector a, a_1 = 0.5
a = zeros(1,50);
a(1) = 0.5;
for n = 2:50
a(n) = k*a(n-1)*(1-a(n-1))
end
plot(a);
title(['k=',num2str(k)]);
%pauses the loop and waits
% for any key press to continue
pause;
end
USe hold on

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