How to store values from a loop?

269 次查看（过去 30 天）
John Doe
John Doe 2014-1-21
评论： Hanna 2023-1-25
I have a .m function file of Y(x,y), and the fzero command below to find the zero for varying values of y:
if true
for y= 2:0.1:10
x = fzero(@(m) Y(m,y),4);
end
end
however after each loop, the previous value is overwritten, is there a way I can save them all?
Kind Regards,
John.

请先登录，再回答此问题。

采纳的回答

Bruno Pop-Stefanov
Bruno Pop-Stefanov 2014-1-21
Store them in a vector using an index like in the following:
y = 2:0.1:10;
% For all elements in vector y
for i=1:numel(y)
% Set ith element of vector x
x(i) = fzero(@(m) Y(m,y(i)),4);
end

更多回答（2 个）

Azzi Abdelmalek
Azzi Abdelmalek 2014-1-21
编辑：Azzi Abdelmalek 2014-1-21
ii= 2:0.1:10
sol=cell(numel(ii),1)
for y=ii
x = fzero(@(m) Y(m,y),4);
sol{y}=x;
end
celldisp(sol)
Mahdi
Mahdi 2014-1-21
There are two ways to do this, the following is the less efficient way
x=[];
if true
for y=2:0.1:10
x=[x; fzero(@(m) Y(m,y),4)];
end
end
Basically, the above code will store all the values in each loop in a matrix x. You can also preallocate and create a matrix by using x(i)=rest of it
i=1
for loop
x(i)=
i=i+1;
end

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息

标签

尚未输入任何标签。

Community Treasure Hunt

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

Start Hunting!

Translated by