Size of matrix changing when input through function

6 次查看（过去 30 天）

Domenick Avanzi 2016-11-29

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/314578-size-of-matrix-changing-when-input-through-function

评论： Guillaume 2016-12-1

Something odd is occurring when I input a matrix through a function. I have the following in a script:

range     = [500,2000]; 
increment = 100;    
duty      = range(1):increment:range(2);

It gets passed into the following function:

ODE_output = get_ODE(duty);

and the length of 'duty' within the get_ODE function goes from 16 to 186 columns. Instead of keeping the original matrix it creates a new one with the following size:

duty = 150:10:2000

I know at one point I had changed my conditions to the above, however I do not understand why it keeps reverting to that specific duty matrix.

I've cleared variables and restarted MATLAB numerous times. I've debugged this for a while and the duty matrix isn't called again until the get_ODE function.

Any ideas on why it's happening and how to fix this?

Thanks!

7 个评论
显示 5更早的评论隐藏 5更早的评论

Domenick Avanzi 2016-12-1

Thank everyone. I actually figured it out. In my get_ODE function I was calling on a .mat file, however when I initially created the .mat it saved the entire workspace instead of the variables I wanted. This explains why it was reverting to previous workspace variables.

Guillaume 2016-12-1

and that is why you never use plain load. Instead you assign it to a variable and assign the file content as fields of that variable. That way, you never run the risk that load is going to overwrite any of your current variables.

请先登录，再进行评论。

请先登录，再回答此问题。