How to hold on values in ''Vector" with the continuity of the loop

Question

abdullah al-dulaimi 2022-12-26

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1884672-how-to-hold-on-values-in-vector-with-the-continuity-of-the-loop

评论： Voss 2022-12-26

采纳的回答： Voss

I have this example:

for t=20:10:30

for i=900

a=t+i

end

I want result to be (Vector a):

a=

920

930

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Answer 1

Voss 2022-12-26

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1884672-how-to-hold-on-values-in-vector-with-the-continuity-of-the-loop#answer_1136457

在 MATLAB Online 中打开

t = 20:10:30;
i = 900;
a = t.' + i
a = 2×1
   920
   930

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abdullah al-dulaimi 2022-12-26

by Loop

Voss 2022-12-26

在 MATLAB Online 中打开

Or, if you must use loops:

t_all = 20:10:30;
i_all = 900;
nt = numel(t_all);
ni = numel(i_all);
a = zeros(nt*ni,1);
idx = 1;
for t = t_all
    for i = i_all
        a(idx) = t+i;
        idx = idx+1;
    end
end
disp(a)
   920
   930

Or:

t = 20:10:30;
i = 900;
nt = numel(t);
ni = numel(i);
a = zeros(nt*ni,1);
idx = 1;
for t_idx = 1:nt
    for i_idx = 1:ni
        a(idx) = t(t_idx)+i(i_idx);
        idx = idx+1;
    end
end
disp(a)
   920
   930

Or:

t = 20:10:30;
i = 900;
nt = numel(t);
ni = numel(i);
a = zeros(nt*ni,1);
for t_idx = 1:nt
    for i_idx = 1:ni
        a((t_idx-1)*ni+i_idx) = t(t_idx)+i(i_idx);
    end
end
disp(a)
   920
   930