how to change variable name in for loop
显示 更早的评论
I am trying to do a problem for structural analysis, i got stuck in this part trying to make a for loop give me different variables, here's the example. Thanks in advance!!
for i=1:nel
kl =[J(1,i) 0 0 -J(1,i) 0 0
0 J(3,i) J(2,i) 0 -J(3,i) J(2,i)
0 J(2,i) J(4,i) 0 -J(2,i) J(5,i)
-J(1,i) 0 0 J(1,i) 0 0
0 -J(3,i) -J(2,i) 0 J(3,i) -J(2,i)
0 J(2,i) J(5,i) 0 -J(2,i) J(4,i)]
end
I need a new "kl" each iteration, can anybody help me out, it's my first month using matlab.
1 个评论
采纳的回答
Jan
2014-10-11
A bold guess: Do you want to store the different matrices in a variable?
kl = zeros(6, 6, nel)
for i = 1:nel
kl(:,:,i) =[J(1,i) 0 0 -J(1,i) 0 0; ...
0 J(3,i) J(2,i) 0 -J(3,i) J(2,i); ...
0 J(2,i) J(4,i) 0 -J(2,i) J(5,i); ...
-J(1,i) 0 0 J(1,i) 0 0; ...
0 -J(3,i) -J(2,i) 0 J(3,i) -J(2,i); ...
0 J(2,i) J(5,i) 0 -J(2,i) J(4,i)];
end
Or in a cell array:
kl = cell(1, nel);
for i = 1:nel
kl{i} = ...
3 个评论
Oleg Komarov
2014-10-11
Alejandro's comment moved here:
Thanks a lot, the problem was the one you boldly guessed. My only remaining question would be if there's a way of naming the matrices kl1, kl2, kl3, kl4, kln instead of kl(:,:,1) etc?
Oleg Komarov
2014-10-11
@Alejandro: absolutely avoid this programming practice. Keep the data in one place and if you need the meta info associated withe the name of the slice, then use structures or tables.
Jan
2014-10-12
@Alejandro: Hiding an index in the name of a variable is a bad programming style.
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
Translated by 
