when i write doesn't displays anything

fid = fopen('new.bin','w');

A= [1 2 3 4];

fwrite(fid,A);

fclose(fid);

this code doesn't gives any data in the bin file when i open that file in matlab i didn't see anything.

Answer 1

[KSSV]

% Wrtie a binary file  
  fid = fopen('new.bin','w');
  A= [1 2 3 4];
  fwrite(fid,A);
  fclose(fid);

% Read the file created 
 fid = fopen('new.bin','r') ;
  A = fread(fileID)  ;
  fclose(fid)
 A

It is working fine. You are writing data to a binary file, use fread to read the file created.

Note: You asked many questions and accepted no answer so far. You must acknowledge the people who spent time to answer your queries. You have to accept the answer.

[lafnath p]

but its reads in column wise .how can i get data as row wise.

[KSSV]

As you know the format while you have written the file. You can read the file as below:

fid = fopen('new.bin','r') ;
  A = fread(fileID,[1 4])  ;
  fclose(fid) ;
 A

I suggest you to read documentation part of fread.

[lafnath p]

thank you..