If loop: What's going wrong?
7 ビュー (過去 30 日間)
古いコメントを表示
Here is my if loop:
loopcount = 0;
TotalEnrolledNew = 0;
if TotalEnrolledNew < 10000;
x11(1) = 1500;
x22(1) = 1400;
x33(1) = 1300;
for k = 1:1:14
x11(k+1) = 0.1 * x11(k) + 2900 + 100 * k;
x22(k+1) = 0.75 * x11(k) + 0.05 * x22(k) + 250 + 50 * k;
x33(k+1) = 0.9 * x22(k) + 0.05 * x33(k);
end
TotalEnrolledNew = x11(k) + x22(k) + x33(k)
loopcount = loopcount + 1
else
x111(1) = x11(loopcount);
x222(1) = x22(loopcount);
x333(1) = x33(loopcount);
for k = 1:1:14
x111(k+1) = 0.1 * x111(k) + TotalEnrolledNew;
x222(k+1) = 0.75 * x111(k) + 0.05 * x222(k) + 300;
x333(k+1) = 0.9 * x222(k) + 0.05 * x333(k);
end
TotlEnrolledNew2 = x111(15) + x222(15) + x333(15)
end
The idea is quite blatant, to follow the first set of rules until TotalEnrollmentNew is greater than 10000, then follow the new set of rules using TotalEnrolledNew in its first iteration. My issue is that loopcount stays at 1 in the ouput, and i think this is because of the use of the first for loop meaning the program loops within the if loop, so doesn't loop correctly. I have tried doing the following without the for loop but can't make any headway.
Any and all help appreciated as always
1 件のコメント
Stephen23
2018 年 1 月 10 日
編集済み: Stephen23
2018 年 1 月 10 日
Your code alignment is very poor, which makes following the logic of the code much harder. Poor code alignment is how beginners hide bugs in their code. You should use the default alignment of the MATLAB editor. You can also align the code in the Editor by selecting the code and then pressing ctrl + i. Correctly aligned code makes identifying your mistake much simpler:
loopcount = 0;
TotalEnrolledNew = 0;
if TotalEnrolledNew < 10000;
x11(1) = 1500;
x22(1) = 1400;
x33(1) = 1300;
for k = 1:1:14
x11(k + 1) = 0.1 * x11(k) + 2900 + 100 * k;
x22(k + 1) = 0.75 * x11(k) + 0.05 * x22(k) + 250 + 50 * k;
x33(k + 1) = 0.9 * x22(k) + 0.05 * x33(k);
end
TotalEnrolledNew = x11(k) + x22(k) + x33(k)
loopcount = loopcount + 1
else
x111(1) = x11(loopcount);
x222(1) = x22(loopcount);
x333(1) = x33(loopcount);
for k = 1:1:14
x111(k + 1) = 0.1 * x111(k) + TotalEnrolledNew;
x222(k + 1) = 0.75 * x111(k) + 0.05 * x222(k) + 300;
x333(k + 1) = 0.9 * x222(k) + 0.05 * x333(k);
end
TotlEnrolledNew2 = x111(15) + x222(15) + x333(15)
end
採用された回答
Stephen23
2018 年 1 月 10 日
編集済み: Stephen23
2018 年 1 月 10 日
These are the relevant parts of the code:
loopcount = 0;
...
if TotalEnrolledNew < 10000;
...
... irrelevant loop here
...
loopcount = loopcount + 1
else
...
... another irrelevant loop here
...
end
As you can see all loops are totally irrelevant to your loopcount variable: it is not incremented in any loop because it is not inside any loop.
It is not clear what you expect loopcount to do, or why you think it has anything to do with loops.
"The idea is quite blatant, to follow the first set of rules until TotalEnrollmentNew is greater than 10000, then follow the new set of rules using TotalEnrolledNew in its first iteration."
You don't change TotalEnrolledNew inside any loop, so it is not clear how this description corresponds to your code. If TotalEnrollmentNew should be changing "until" some condition then you need to be defining/updating its value inside some loop of some kind, perhaps something like this:
TotalEnrollmentNew = ...
...
while TotalEnrolledNew < 10000;
...
TotalEnrollmentNew = ...
end
...
... move on to the next "set of rules":
while ...
...
end
その他の回答 (1 件)
Jette
2018 年 1 月 10 日
I think there is missing a surrounding loop which loop over TotalEnrolledNew (?). Or do you have another loop around the code shown here?
参考
カテゴリ
Help Center および File Exchange で Loops and Conditional Statements についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!