Import column from files

Hello,

I have 200 files with names starting from 3201.rad to 3396.rad, each files has header (5 lines of text), 1057 raw and 3 columns. I want to create a matrix with the second column of each file, without the header. Matrix with 1057 raw, 196 column.

Thank you in advance for your help!

M.

Answer 1

[Matt J]

   A=zeros(1507,196);

   for i=3201:3396

    filename=[num2str(i) '.raw'];

    A(:,i) = dlmread(filename,'',[5,1,1511,1]);

   end

[Momo]

Thank you Matt for your respons. However, it does not work. it gives me the message below

??? Error using ==> dlmread at 145 Mismatch between file and format string. Trouble reading number from file (row 1, field 5) ==> \n

I don't know how I can solve this problem. In details this is the data in files (4 columns, 1073 rows, 5 lines in header )

without numbers 1, 2, 3, 4, 5 in rows

1. 3201.rad
2. center 668.60 831.10 -> 668.14 832.82, r_max 1070.04
3. radius binding according to
4. 1 sectors on 360 degs with origin at -180.00 deg, 0.00 deg
5. a I e/s n ...
6. 0.0 102215.03 1915.55 4.6
7. 1.0 105897.02 4812.49 9.9
8. 2.0 108802.90 3875.25 16.4
9. ....
10. ..... # ......
11. 1072.0 108802.90 3875.25 16.4

I have 196 files with this data, and I would like to tranfer only the 2nd column of all files to a matrix.

Thank you very much

[Matt J]

Works fine for me, Momo. What version of MATLAB are you using and are you sure you're calling DLMREAD with 3 input arguments, like in what I posted?

The error message says it's trying to read row 1, field 5. It should not be doing that if you've called it with the 3rd argument.