help with regexp on txt file

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idam hamawi 2021-1-1

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编辑： Ive J 2021-1-2

采纳的回答： Ive J

Hi all,

I have a txt file which contain in one row: (example)

16/12/2020 18:30:59.443 abcabcabcabcabcabcabc Vco 7000 Ico 3200

I succeeded to capture the date and time and i need help to capture the numbers after specific name like Vgr or Igr. I want the numbers 7000 and 3200.

For the date and time i used th expresion:

expression_date = ['(?<day>\d+)/(?<months>\d+)/(?<year>\d+)'];

Date=regexp(fid{1,1},expression_date,'match');

expression_time = ['(?<hour>\d+):(?<minute>\d+):(?<second>\d+)'];

Time=regexp(fid{1,1},expression_time,'match');

Thank you!

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采纳的回答

Ive J 2021-1-1

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/706448-help-with-regexp-on-txt-file#answer_588678

编辑：Ive J 2021-1-2

在 MATLAB Online 中打开

str = '16/12/2020 18:30:59.443 Ico 3 Vco     1e7  Ico -3.2e+8  Vco 1.12e-7 Ico  -3200 Vco 2.345e14';
regexp(str, '(?<=(Vco|Ico)\s*)[+-]?\d+[.]?(\d+)?[e]?[+-]?(\d+)?', 'match')
  1×6 cell array
  Columns 1 through 5
    {'3'}    {'1e7'}    {'-3.2e+8'}    {'1.12e-7'}    {'-3200'}
  Column 6
    {'2.345e14'}