If loop: What's going wrong?
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Liam Wiltshire
el 10 de En. de 2018
Comentada: Liam Wiltshire
el 11 de En. de 2018
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 comentario
Stephen23
el 10 de En. de 2018
Editada: Stephen23
el 10 de En. de 2018
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
Respuesta aceptada
Stephen23
el 10 de En. de 2018
Editada: Stephen23
el 10 de En. de 2018
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
Más respuestas (1)
Jette
el 10 de En. de 2018
I think there is missing a surrounding loop which loop over TotalEnrolledNew (?). Or do you have another loop around the code shown here?
1 comentario
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