copy pasting rows of a file to columns of other file

I have three files: 1) file1.ap and 2) file2.ap and 3)file3.ap with form as follows:

file1

1 2 3

4 5 6

7 8 9

file2

12 15 16

13 18 19

14 21 22

file3

22

24

33

i want to add 2nd and 3rd column of file 1 & file2 to file3 as rows i.e i want:

22 2 3 5 6 8 9

24 15 16 18 19 21 22

33

please help me with the program.

Answer 1

[Chandrasekhar]

clear all;
clc;
fp1 = fopen('f1.ap','r');
i = 1;
while(~feof(fp1))
    mat{i,:}= fgetl(fp1);
    i = i+1;
end
fclose(fp1);

mat1 = str2num(cell2mat(mat));
mat1=mat1(:,2:3);
mat1 = reshape(mat1',1,6);

fp2 = fopen('f2.ap','r');
i = 1;
while(~feof(fp2))
    mat{i,:}= fgetl(fp2);
    i = i+1;
end
fclose(fp2);
mat2 = str2num(cell2mat(mat));
mat2 = mat2(:,2:3);
mat2 = reshape(mat2',1,6);

fp3 = fopen('f3.ap','r');
i = 1;
while(~feof(fp3))
    mat{i,:}= fgetl(fp3);
    i= i+1;
end
mat3 = str2num(cell2mat(mat));

mat3 = [mat3 [mat1;mat2;zeros(1,6)]];
mat2 = num2str(mat3)

fclose(fp3);

mat3 contains the required matrix

[aditi]

Thanksss a tom akshata....

one more query in above question:

what if i have more than 2 files instead of just f1 and f2... and from all those files i want to do the same thing in f3.ap...then??

[Chandrasekhar]

you can implement the file reading logic in a loop..

[aditi]

hi akshata....could u plz tell me how to do so..m new to MATLAB

[Chandrasekhar]

can u attach the data..i can make it for u