reading specific lines in the text file.

Question

sermet 2015-4-21

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/212421-reading-specific-lines-in-the-text-file

编辑： Stephen23 2015-4-21

data.txt

I need to read "# / TYPES OF OBSERV" lines and extract the lines' data except "# / TYPES OF OBSERV". For example in the data.txt file (attached file), related lines are;

    10    L1    A2    L5    C1    C2    P2    C5    S1    L2# / TYPES OF OBSERV
          S5                                                # / TYPES OF OBSERV

I need to read these two lines and create below cellarray

data_cell={'10' 'L1' 'A2' 'L5' 'C1' 'C2' 'P2' 'C5' 'S1' 'L2' 'S5'}

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Stephen23 2015-4-21

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/212421-reading-specific-lines-in-the-text-file#answer_176065

编辑：Stephen23 2015-4-21

在 MATLAB Online 中打开

data.txt

There are multiple ways that this could be achieved, for example regular expressions and regexp:

>> ptn = '# / TYPES OF OBSERV';
>> str = fileread('data.txt');
>> out = regexp(str, ['^[^\n]+(?=',ptn,'\s*$)'], 'match', 'lineanchors');
>> out = regexp([out{:}], '(?<=\s+)\S+', 'match')
out =  '10'    'L1'    'A2'    'L5'    'C1'    'C2'    'P2'    'C5'    'S1'    'L2'    'S5'