How to split text files into many text files?

Question

hanif hamden 2020-8-25

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/584207-how-to-split-text-files-into-many-text-files

评论： hanif hamden 2020-8-25

采纳的回答： Rik

Example.txt

在 MATLAB Online 中打开

Hi everyone. Can anyone help us to split the data into many files. The example data is attached.

This is how the data look like..

Lat:     6.4931, Lon:    99.6067, Parameter: z(m)  <--This is the start line
Depth (m):      22.45
Constituents included: m2  s2  k1  o1  
Time start: 00:00,  1. 1.1993 
Time step (min):      60.00
Time Series length (hours):236664
01-Jan-1993 00:00:00    -0.0946
01-Jan-1993 01:00:00    -0.3369
01-Jan-1993 02:00:00    -0.5110
... More Data
31-Dec-1993 23:59:59    -1.1673    <-- This is the last line
Lat:     6.3933, Lon:    99.6067, Parameter: z(m) <--- Another start line for different coordinate
Depth (m):      30.74
Constituents included: m2  s2  k1  o1  
Time start: 00:00,  1. 1.1993 
Time step (min):      60.00
Time Series length (hours):236664
01-Jan-1993 00:00:00    -0.1017
01-Jan-1993 01:00:00    -0.3324
01-Jan-1993 02:00:00    -0.4965
... More Data
31-Dec-1993 23:59:59    -1.1284  <--Another last line

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Answer 1

Rik 2020-8-25

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/584207-how-to-split-text-files-into-many-text-files#answer_484673

编辑：Rik 2020-8-25

在 MATLAB Online 中打开

The code below assumes each file ends with an empty line. You could also search for 'Lat:' instead to determine the beginning of a new file.

You can get the readfile function from the FEX or through the AddOn-manager (R2017a or later).

data=readfile('https://www.mathworks.com/matlabcentral/answers/uploaded_files/351353/Example.txt');
lastlineoffile=find(cellfun('isempty',data));
lastlineoffile=[0;unique([lastlineoffile;numel(data)])];%add last line just to make sure
for n=1:(numel(lastlineoffile)-1)
    currentfile=data((lastlineoffile(n)+1):lastlineoffile(n+1));
    fid=fopen(sprintf('aa__file%03d.txt',n),'w');
    fprintf(fid,'%s\n',currentfile{:});
    fclose(fid);
end