can not read this file
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hi
I have txt file with big size (570 MB). I try to read it
by this code:
f1=fopen('d:\matlab11\bin\test1.txt');
c=textscan(f1,'%d %d %f %s %s');
fclose(f1);
c1=c{1}; c2=c{2};c3=c{3};c4=c{4};c5=c{5};
u_user=unique(c1);
u_movie=unique(c2);
%%%%%%%%%%%%%%%%
but I did not get the sme data and not all.
I tried with small part from the same data , I got correct data.
this is the sample:
852910 47995 5 2008-08-16 00:00:00
852910 49280 4.5 2008-05-05 00:00:00
852910 49325 4.5 2008-06-10 00:00:00
852910 48116 5 2008-01-12 00:00:00
how I can read this big size file?
thanks in advance
1 个评论
Oleg Komarov
2012-4-24
Then the file could be corrupt, check it from where you stopped reading it.
回答（1 个）
Ken Atwell
2012-4-24
0 个投票
textscan can return a second output, "pos", which will return the position that textscan stopped at if an error occurred (which seems to be the case here). You can also determine where the error is by the length of what textscan managed return in the first output. If you text file is, say, 10000 row long and c{1} is only 1234 rows long, your error is around that row.
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2012-4-24
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