Double sigma with exception case

2021 6 8
1 个回答
回答已采纳
更新时间：2021 6 8
6 次查看（30 天）

0 个投票

I just tried to coding that. but I can not find out how to make double sigma with exception case.
j=/=i means that if j is equal to i, pass that case.
for i=1:3
for j=1:3
if i~=j
phi(i,j)=(((1+(mu(i)/mu(j))))^(1/2)*((M(i)/M(j))^(1/4)))^2/(2*sqrt(2)*(1+(M(i)/M(j)))^(1/2));
phi_sig(i,j)=phi(i,j).*(y(j)/y(i));
else j=j+1;
end
end
phi_sum(i)=sum(phi_sig,'all');
mu_mix(i)=mu(i)./(1+phi_sum(i));
end
mu_sum=sum(mu_mix,'all');
This is original equation for phi.
I tried like this. is it right direction?

请先登录，再回答此问题。

 采纳的回答

Joseph Cheng
Joseph Cheng 2021-6-8
编辑：Joseph Cheng 2021-6-8
Ran in:

0 个投票

Ran in:
in your nested forloop you can put a check in for if j==i then continue. you do have a check up there with i~=j which should work but you can get rid of the j=j+1 since the for loop will increment j anyways.
for i = 1:4
for j = 1:4
if j==i
continue
else
disp(sprintf('i= %i and j= %i',i,j))
end
end
end
i= 1 and j= 2 i= 1 and j= 3 i= 1 and j= 4 i= 2 and j= 1 i= 2 and j= 3 i= 2 and j= 4 i= 3 and j= 1 i= 3 and j= 2 i= 3 and j= 4 i= 4 and j= 1 i= 4 and j= 2 i= 4 and j= 3

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息

产品

版本

R2020a

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by