Read data from text file. Tables with uneven number of rows

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Auwais Ahmed 2022-2-10

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https://ww2.mathworks.cn/matlabcentral/answers/1647380-read-data-from-text-file-tables-with-uneven-number-of-rows

评论： Turlough Hughes 2022-2-11

I have data of following shape.

I need to save all the numerical values in tables from the file as matrices. The problem is that all the tables have different number of rows. What would be the best way to go about solving the problem. Thanks

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Auwais Ahmed 2022-2-10

t1.txt

This is the file. Thanks

Benjamin Thompson 2022-2-10

How do you want the data combined together? If you combine everything into a single table then you will have rows from different trajectories. Is that OK? Can you provide more information about what you want?

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回答（1 个）

Turlough Hughes 2022-2-11

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https://ww2.mathworks.cn/matlabcentral/answers/1647380-read-data-from-text-file-tables-with-uneven-number-of-rows#answer_893475

编辑：Turlough Hughes 2022-2-11

在 MATLAB Online 中打开

fid = fopen('t1.txt');
c = 1;
while ~feof(fid)
    d = fgetl(fid);
    if ~isempty(regexp(d,'X.*Y.*Z.*Energy', 'once'))
        part = textscan(fid,'%f%f%f%f');
        data{c} = [part{:}];
        c = c+1;
    end
end
fclose(fid);