using matlab fileread function for some portion of text data

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sermet OGUTCU
sermet OGUTCU 2021 年 8 月 23 日
回答済み: Simon Chan 2021 年 8 月 23 日
data = regexp(fileread(full_file_name),'\n','split');
end_of_header_line = find(contains(data,'* '));
I find the row number of the end of header part section in text file using the above codes. The end of header part section always situated in the beginning parts of the text file. Is there a way to use fileread with only the some portions of text file (for example from the first line to 50th line) insted of the whole text file?
If this is not possible, is there a way to read a few portion of text data for extracting the line number of specific string?

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Simon Chan
Simon Chan 2021 年 8 月 23 日
Use function textscan to read the first 50 lines and the header will be stored on a cell array.
fid = fopen(fullfile(filepath,filename), 'r');
header = textscan(fid, '%[^,\n]', 50); % Read the first 50 header lines
fclose(fid);

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