Populating values across a cell

Question

Hari krishnan 2018-9-5

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https://ww2.mathworks.cn/matlabcentral/answers/417714-populating-values-across-a-cell

评论： Hari krishnan 2018-9-8

My data is composed of four cells coming from 4 text files(length of num_files is 4 ). Within each cell values are stored in strings. I wanted to perform an operation in each cell of the data. Once the operation is completed, the data is saved to a cell data_pro .Unfortunately, in data_pro the values in the first cell is duplicated again in the rest of the cells. Any help to solve this will be appreciated.

num_files = length(filenames);      
data_pro = cell(1);
for pp = 1:num_files
  data_ts = data{pp}(:,1);
  new_frame = contains(data_ts,'-');
  frame_num = cumsum(newframe);
  data_with_frames = [num2cell(frame_num) data{pp}];
  data_pro{pp} = data_with_frames; 
end

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Answer 1

James Tursa 2018-9-5

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https://ww2.mathworks.cn/matlabcentral/answers/417714-populating-values-across-a-cell#answer_335611

编辑：James Tursa 2018-9-5

There is nothing in your loop body that uses the index pp other than the data_pro{pp} assignment, so every data_pro{pp} is going to get the same assignment. Maybe you need to use something like data{pp} instead of data{1,1} in your loop body.

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James Tursa 2018-9-6

Step through with the debugger to see what is going on. Open up the code in the editor and click just to the left of a line number to set a break point, then run your code. When it pauses at the line, you can examine variables etc and step through your code one line at a time.

Hari krishnan 2018-9-8