How to read a text file ?

I have some (long)text files like this:

1996-002:16.39.23.565    67.060  

1996-046:16.42.38.868    67.060  

1996-057:17.08.58.620    67.060   

1996-080:16.30.06.334    67.060

I want my script to read the first column and the two first numer. It is 1996 which is the year and 002 which is the day of the year. Someone know how to do this? I have tried with:

tmp = textscan(tline, '%s', 'delimiter', ' ', 'MultipleDelimsAsOne', 1);

But i get an error like: Subscripted assignment dimension mismatch. Anyone know what to do?

Thank you.

Answer 1

[KL]

fileID = fopen('YourFileName.txt');
C = textscan(fileID,'%d-%d:%s %s');
fclose(fileID);

[kk1991]

That doesn't work :/

[KL]

then attach an example of your txt file. I tested with the data you gave and it works for me.

[kk1991]

Thank you for helping me. I mean - how can a make this column as a vector in matlab and plot it further. With you suggestion it only describe how long the column is, I guess?

[kk1991]

This is my code for now. And get this error:

Cell contents reference from a non-cell array object.

Error in tidslinje_test (line 24) d= str2num(C{1})

dinfo= dir('myfile.txt')

N = length(dinfo) 

for K = 1 : N
    fid= fopen(dinfo(K).name) ;
     tline = fgetl(fid);
      ii = 0;
          while ischar(tline)
            ii = ii + 1;

             C=textscan(tline,'%d-%d:%s %s')
             C=C{1};
             d= str2num(C{1})
             fclose(fileID)

            end 
  end

[KL]

what exactly are you trying to do?

If your file name is myfile.txt,

>> fileID = fopen('myfile.txt');
C = textscan(fileID,'%d-%d:%s %d');
fclose(fileID);
whos C
  Name      Size            Bytes  Class    Attributes

    C         1x4              1040  cell               

>> C{1}

ans =

          1996
          1996
          1996
          1996

[kk1991]

I don't know whats happening, but I'm not getting this results on my computer:

>> C{1}

ans =

          1996
            21

My text file look like the one i sent you an example of, but just much longer. Don't understand why i get different from you. :/

[KL]

attach the txt file here with few rows of data