How to save all runs in the while loop

조회 수: 3 (최근 30일)
Richard Rogers
Richard Rogers 2018년 3월 11일
댓글: Stephen23 2018년 3월 11일
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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Von Duesenberg
Von Duesenberg 2018년 3월 11일
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)
  댓글 수: 1
Stephen23
Stephen23 2018년 3월 11일
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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