multiple loop and produce infinite loop
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hi, i have trouble using while loop. Where should i put the j inrement? i try fews times but infinite loop. Thanks in advance.
k = 4
j = 1
i=1
while j <= k
for n = i:40
if (G(i,11)) == j
mean = sum(G(i:10))/length(G)
i=i+1
break
end
%j=j+1
end
%j=j+1
end
1 个评论
What is the code meant to be doing?
Note that using length on a 2D matrix is asking for a lot of trouble. Is that length supposed to return the number of rows or the number of columns (note that it can return either depending on the actual size of G)
And naming a variable mean is also a very bad idea since it prevents you from using the mean function.
Is the switching from 2D indexing (in G(i, 11)) to linear indexing (in G(i:10)) on purpose or a major error?
回答（1 个）
adeq123
2019-10-25
This one works for me:
G = 100:1:1000;
k = 4;
j = 1;
i = 1
while j <= k
for n = i:40
if G(i,11) == j
mean = sum(G(i:10))/length(G)
i = i+1
break
end
%j=j+1
end
j=j+1
end
3 个评论
Khairul Nur
2019-10-25
adeq123
2019-10-25
The j is incremaneting at the end of while loop. During the last iteration it is increament to 5 but the loop is not executed since entrance criteria is not met.
You can also do this one:
G = 100:1:1000;
k = 4;
j = 0;
i = 1
while j < k
j=j+1
for n = i:40
if G(i,11) == j
mean = sum(G(i:10))/length(G)
i = i+1
break
end
%j=j+1
end
end
But the result is the same as previous.
Khairul Nur
2019-10-25
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2019-10-25
2019-10-25
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