General question about how do I loop this process?

%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!

Answer 1

[Andrew Newell]

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

[Walter Roberson]

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.)