How can I write "words" and time format in a matrix ?

Question

zeezo 2017-9-27

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https://ww2.mathworks.cn/matlabcentral/answers/358625-how-can-i-write-words-and-time-format-in-a-matrix

评论： Walter Roberson 2017-9-27

I have this code

m=0.5
A = poissrnd(m, 24, 1);
for i=1:24;
  if A(i,:)== 0;
     DT(i,:)= 00:00:00;               % I want it to be on time format, 00:00:00 How??
  elseif 10>=A(i,:)>0;
      DT(i,:)= 00:00:10;              % I want it to be on time format , 00:00:10  
  else A(i,:)>10;
      DT(i,:)=00:00:20;               % I want it to be on time format, 00:00:20 
    end
end

As I write on the code how can I make the code to write time format?

Thank you you very much

2 个评论
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Jan 2017-9-27

编辑：Jan 2017-9-27

在 MATLAB Online 中打开

It depends on what you want DT to be. A datetime vector?

What does this mean:

 As I write on the code how can I make the code to type ' no delay'
 and write time format?

zeezo 2017-9-27

It was a mistake. I edit the question and I forget to delete it.

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Answer 1

Jan 2017-9-27

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/358625-how-can-i-write-words-and-time-format-in-a-matrix#answer_283394

在 MATLAB Online 中打开

sec = zeros(size(A));
sec(0 < A & A <= 10) = 10;
sec(A > 10)          = 20;
DT = datetime(0, 0, 0, 0, 0, sec, 'Format', 'HH:mm:ss');

Note:

elseif 10 >= A(i,:) > 0

This will not do, what you expect. Matlab evaluates this from left to right. In the first step 10 >= A(i, :) replies a logical vector, which contains TRUE or FALSE. Then TRUE > 0 or FALSE > 0 is calculated. You mean:

elseif 10 >= A(i,:) && A(i, :) > 0