append/save same variable with updated values without overwriting previous values.

7 次查看（过去 30 天）
Armel
Armel 2013-10-22
回答： Walter Roberson 2013-10-22
Hi, Let's say I have a variable called Stress that I would like to save at each end of each loop.
Stress=[1 2 3 4 5] "1st loop", Stress=[6 7 8 9 10] "2nd loop", Stress=[11 12 13 14 15] "3rd loop".
How can I save the results in matlab so that when I open the mat-file, I get a nice table with 1st row showing the Stress values of the 1st loop, 2nd row showing the Stress values of the 2nd loop and so on.
I tried save(filename,Stress,-append) but values get overwritten maybe because the variable name (stress) remains unchanged. If that's the case, how can make the variable string (Stress) in the save function dynamic? Thank you

请先登录，再回答此问题。

回答（2 个）

Azzi Abdelmalek
Azzi Abdelmalek 2013-10-22
编辑：Azzi Abdelmalek 2013-10-22
stress=zeros(3,5);
for k=1:3
stress(k,:)=[1 2 3 4 5]; % adapt this line to your problem
end
% There is another way, but make your code slower
stress=[];
for k=1:3
stress=[stress;1 2 3 4 5]
end
  1 个评论
Armel
Armel 2013-10-22
Thank you Azzi, However this is not quite what I'm looking for. But it just gave me a new idea that I would like to try. Thanks

请先登录，再进行评论。

Walter Roberson
Walter Roberson 2013-10-22
Have a look at the matFile class, http://www.mathworks.com/help/matlab/ref/matfile.html

类别

在 Help Center 和 File Exchange 中查找有关 Stress and Strain 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by