How to add final value of a loop part to the next one. i need to add the months answers of ii=1 to ii=12

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Seb Stephen
Seb Stephen 2018-6-19
评论： Seb Stephen 2018-6-19
clc;
clear;
month =0;
for ii = 1:12
x1 = input('week1:');
x2 = input('week2:');
x3 = input('week3:');
x4 = input('week4:');
month = x1+x2+x3+x4
end
  1 个评论
Dennis
Dennis 2018-6-19
Use ii as index:
month(ii)=x1+x2+x3+x4;
Maybe consider indexing x aswell:
for ii=1:2
for k=1:4
x(k)=input(strcat('week',num2str(k)));
end
month(ii)=sum(x);
end
If you want to keep x values you can use x(ii,k) and sum(x(ii,:))

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回答（2 个）

Guillaume
Guillaume 2018-6-19
What is the purpose of Xs ?
Do not number variables. If you're numbering variables that is a good indication that you should be using an array instead:
for ii = 1:12
x(1) = ...
x(2) = ...
...
month = sum(x);
end
Even better since you're now using an array, you can use another loop:
for ii = 1:12
for week = 1:4
x(week) = input(sprintf('week%d:', week));
end
month = sum(x);
end
this is much better code. If you need to add another week, you only need to change the endpoint of the loop.
As for your question, if I understood correctly:
month = 0;
for ii = ...
...
month = month + sum(x);
end
Sayyed Ahmad
Sayyed Ahmad 2018-6-19
编辑：Sayyed Ahmad 2018-6-19
clc;
clear;
XS =0;
month=0;
for ii = 1:12
x1 = input('week1:');
x2 = input('week2:');
x3 = input('week3:');
x4 = input('week4:');
month = month+x1+x2+x3+x4
end

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