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How to save all runs in the while loop

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Richard Rogers
Richard Rogers 2018-3-11
评论： Stephen23 2018-3-11
I'm trying to figure out how to save every point in my while loop in order to graph it in the comet function. My code looks like:
n = 1
score = 0
while n < 100
n = n + 1
x = randi(2);
if (x == 1)
score = score + 1;
elseif(x == 2)
score = score - 1;
end
end
comet(score)
All it currently does is show what score ends as and i what to plot every point before then as well. What should i change it to to make it keep and plot every prevouis score?

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采纳的回答

Von Duesenberg
Von Duesenberg 2018-3-11
Try this:
allScores = zeros(99,1);
n = 1;
score = 0;
while n < 100
x = randi(2);
if (x == 1)
score = score + 1;
elseif(x == 2)
score = score - 1;
end
allScores(n) = score;
n = n + 1;
end
comet(allScores)
  1 个评论
Stephen23
Stephen23 2018-3-11
Given that before the loop starts the number of iterations is already known, a for loop would be a better choice:
score = 0;
allScores = zeros(99,1);
for n = 1:99
x = randi(2);
if x==1
score = score + 1;
elseif x==2
score = score - 1;
end
allScores(n) = score;
end
comet(allScores)
It would also be easy to remove the if:
score = 0;
allScores = zeros(99,1);
for n = 1:99
score = score + 1 - 2*randi(0:1);
allScores(n) = score;
end
comet(allScores)

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