Why does textscan only read the first row of my text file?

77 views (last 30 days)
for file = 1:total_files
[inputfile,path] = uigetfile('*.txt');
fileids{file} = fopen(fullfile(path, inputfile));
if fileids{file} == -1
error('Failed to open file "%s"', fullfile(path, inputfile));
end
b = textscan(fileids{file},'%n %n %*n %*n %*n %*n %*n',-1, 'delimiter', '/t');
events = b{1};
event_times = b{2};
I want to read in only fhe first two columns out of 7. This works. However, I can only read in the first row.

Accepted Answer

Vimal Rathod
Vimal Rathod on 4 May 2020
Hi,
Instead of using the below line,
b = textscan(fileids{file},'%n %n %*n %*n %*n %*n %*n',-1, 'delimiter', '/t');
use this,
b = textscan(fileids{file},'%n %n %*[^\n]', -1, 'delimiter', '\t', 'EndOfLine','\r\n');
you will be able to access the data properly.
Hope this helps!
  1 Comment
Samuele Bolotta
Samuele Bolotta on 11 May 2020
Thanks! What if I now want to access the other columns, from 3 to 7? Why doesn't it become:
b = textscan(fileids{file},'%*[^\n] %n %n', -1, 'delimiter', '\t', 'EndOfLine','\r\n');
I'm trying it out but I get this error:
Index exceeds the number of array elements (5).
Error in SocialTest (line 21)
count = b{6};

Sign in to comment.

More Answers (0)

Categories

Find more on Large Files and Big Data in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!