can change the name of txt. file not manually

hi,

I have to run the following code sevral times, each time I have to change the name of files , I have to read 2 files and write one file. If I change the name of files manually , it takes long time . Are there a way by which can change the name not manually . i.e can do that x=2; in this case I change just x each running

f1=dlmread('d:\matlab\r2011a\bin\new_movielens1\netflix\sequences\part1_x.txt');
f4=dlmread('d:\matlab\r2011a\bin\new_movielens1\netflix\sequences\intersect_x.txt');

[p o]=size(f1);k=1;
for i=1:length(f4)
    seq1(i,:)=f1(f4(i),:);
seq2(i,:)=f2(f4(i),:);
seq3(i,:)=f3(f4(i),:);
end
  dlmwrite('d:\matlab\r2011a\bin\new_movielens1\netflix\sequences\com_eval_x.txt',seq3);

thanks in advance

Answer 1

[Ahmed A. Selman]

If your filenames are part1_1.txt, part1_2.txt, part1_3.txt.. etc.,

and intersect_1.txt, intersect_2.txt.. etc.,

and want to write in files as com_eval_1.txt, com_eval_2.txt..etc., respectively,

use the following method:

name1='d:\matlab\r2011a\bin\new_movielens1\netflix\sequences\part1_';
name2='d:\matlab\r2011a\bin\new_movielens1\netflix\sequences\intersect_'; 
nameout='d:\matlab\r2011a\bin\new_movielens1\netflix\sequences\com_eval_';
ext='.txt';

   n=... ;% number of files
   for x=1:n
    F1_name=[name1,num2str(x),ext];
    F4_name=[name2,num2str(x),ext];
    OutName=[nameout,num2str(x),ext];
    f1=dlmread(F1_name);
    f4=dlmread(F4_name);
    [p o]=size(f1);k=1;
    for i=1:length(f4)
        seq1(i,:)=f1(f4(i),:);
        seq2(i,:)=f2(f4(i),:);
        seq3(i,:)=f3(f4(i),:);
     end
    dlmwrite(OutName,seq3);
  end

[huda nawaf]

Many thanks , I will try that