Unable to determine formatSpec while reading .txt file by fscanf
4 ビュー (過去 30 日間)
古いコメントを表示
Hi, i'm trying to make [n , 4] table with the a.txt
I need only need numeric datas but i have no idea which formatSpec i need to use.
I have no idea how to deal with the space blanks between numbers i need.
a = fopen('a.txt' ,'r')
data = fscanf(a , FromatSpec , [4 inf])
Please let me know which formatSpec i need to use.
1 件のコメント
Walter Roberson
2020 年 11 月 4 日
textscan with headerlines set to about 9 or 10 (not sure from my phone)
採用された回答
Ameer Hamza
2020 年 11 月 4 日
This is one way:
lines = strsplit(fileread('a.txt'), '\n', 'CollapseDelimiters', false);
idx = find(contains(lines, 'Global Statistics'));
idx = [9 idx+10];
data = cell(1, numel(idx));
fid = fopen('a.txt' ,'r');
line_read = 0;
for i = 1:numel(idx)
data{i} = textscan(fid , '%f %f %f %f', 'HeaderLines', idx(i)-line_read);
line_read = idx(i) + numel(data{i}{1})+1;
end
fclose(fid);
[data, idx] = cellfun(@(x) deal({[x{:}]}, isempty(x{1})), data);
data(idx) = [];
0 件のコメント
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Large Files and Big Data についてさらに検索
製品
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!