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General question about how do I loop this process?

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Laurentiu Galan
Laurentiu Galan 2012-1-10
%Pull all the Data into Matlab to Pull each line and Read the contents back into an array
fid = fopen('C:\Users\Laurentiu Galan\Desktop\pca1.csv');
tline = fgetl(fid);
while ischar(tline)
disp(tline)
tline = fgetl(fid);
end
fclose(fid);
Hello, I am trying to several things at once in the code and was wondering if you could give me some generic insight into how I could continue with this process.
I've run this code and was able to read the the individual lines into matlab. How do i actually access each individual line? I need to parse some data into each line and was wondering how to loop it
For example: if I wanted the 2645 line, how do I get?
Thanks!

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采纳的回答

Andrew Newell
Andrew Newell 2012-1-10
It depends. If you want just line 2645, you could do the following:
for ii=1:2644
fgetl(fid);
end
tline = fgetl(fid);
If you want to store all the lines, you could save them in a cell array:
tline = cell(3000,1); % or whatever size you need
ii=1;
while ischar(tline)
tline{ii} = fgetl(fid);
ii = ii+1;
end
  1 个评论
Walter Roberson
Walter Roberson 2012-1-10
Right. In particular, there is no way to just "go" to a specific line (no unless you know *exactly* which byte number it is in the file.)

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