您正在关注此问题

您将在关注的内容源中看到更新。
您可能会收到电子邮件，具体取决于您的通信预设项。

for loop within for loop

12 次查看（过去 30 天）

显示更早的评论

Hinna Ahmed 2019-11-4

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop

⋮

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop

评论： ME 2019-11-4

采纳的回答： ME

Hey,

I want to make two for loops. the first for loop is when the values are j = [1:4,5:8,9:2,13:6,7:20,21:24]

because I am using this for a subplot, so when j = 1 or j=5 or j=9 or j=13 or j=17 or j=21 then i=1.

When j=2, j=6 ,j=10 , j=14 , j=18 or j=22 then i=2.

When j=3, j=7, j=11, j=15, j=19 or j=23 then i=3.

When j=4, j=8, j=12, j=16, j=20, j=24 then i=4.

采纳的回答

ME 2019-11-4

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#answer_399703

⋮

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#answer_399703

在 MATLAB Online 中打开

I don't know what you want to do inside those for loops so I can't give you full code but the loops you'll want are:

for i=1:4;
    for j=i:4:24;
        
    end
end

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763385

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763385

Hinna Ahmed 2019-11-4

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763387

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763387

thank you for your answer but it still doesn't work. subplot should go upto subplot(1,4,4).

ME 2019-11-4

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763394

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763394

在 MATLAB Online 中打开

for i=1:4;
    for j=i:4:24;
        
    end
    subplot(1,4,i);
    plot(...)
end

Depending on how you store your results, you may need to do your plotting commands with some (i:4:end) commands in there to miss out a bunch of zeros.

Hinna Ahmed 2019-11-4

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763403

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763403

shouldn't there be anything inside the second loop? :)

ME 2019-11-4

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763406

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763406

My assumption was that you needed to get the correct combinations of i and j for some further calculations. I was imagining that you'd fill those calculations in within the j for loop. Otherwise I can't understand what you are actually plotting.

Hinna Ahmed 2019-11-4

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763412

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763412

编辑：Hinna Ahmed 2019-11-4

I am plotting a matrix from a table.

imagesc(t/60,F,DataTable3.Coh_time{j,1})

j is actualle the row of its location. The length of the table is 24. the first 4 rows should be plotted in a subplot together and then the next 4 rows in another subplot and so on (upto 6 plots). There should be 6 plots each containing 4 subplots. The imagesc function is actually plotting the matrix.

ME 2019-11-4

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763416

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763416

Well then if that's what you want then that should have been stated in your initial question!

If you could attach the data table to your question that would be extremely helpful!

Hinna Ahmed 2019-11-4

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763419

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763419

Hinna Ahmed 2019-11-4

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763420

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763420

编辑：Hinna Ahmed 2019-11-4

I am sorry, that I didn't state it in the initial question

ME 2019-11-4

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763432

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489095-for-loop-within-for-loop#comment_763432

编辑：ME 2019-11-4

在 MATLAB Online 中打开

No problem, it's just that people are giving up their time to answer these questions and that is all for nothing if the questions aren't clear.

Anyway, if you want the first four rows of your cell array to be figure one, rows 5-8 in figure two and so on, then you can use:

for p=1:6
    figure
    for i=1:4
        subplot(2,2,i)
        imagesc(C{((p-1)*4)+i,1})
    end
end

where p is for the six figures and i is for the four rows. I have assumed a 2x2 layout for the subplots in each figure window but if you'd prefer then all in a line then swap subplot(2,2,i) for either subplot(1,4,i) or subplot(4,1,i).

I hope this helops now!

Hinna Ahmed 2019-11-4