Write/read binary files

Hi,

Not sure where the bugs are or what I did wrong. I saved arrays of complex numbers in a Matlab binary file and then read out the numbers from the saved file. The values don't match. Saved values are e^-6 and read-out values are e^389. Codes are below.

%write codes
fido = fopen(filename_out,'w','ieee-be');
tmpdatR(:,:) = real((X));
 tmpdatI(:,:) = imag((X));
 tmpdat = [tmpdatR,tmpdatI];
e=fwrite(fido,tmpdat,'double');    %fwrite is in a loop
fclose(fido)
 
%read codes
fido=fopen(filename,'r','ieee-be');
XCtemp=fread(fido,inf,'double');
fclose(fido)

Answer 1

[per isakson]

This script

%%
ffs = 'test.bin';
X   = 1+2i;
%% write codes
fid = fopen(ffs,'w','ieee-be');
tmpdatR = real((X));
tmpdatI = imag((X));
tmpdat = [tmpdatR,tmpdatI];
e=fwrite(fid,tmpdat,'double');    %fwrite is in a loop
fclose(fid);
%% read codes
fid=fopen(ffs,'r','ieee-be');
XCtemp=fread(fid,inf,'double');
fclose(fid);
%%
tmpdat, XCtemp

outputs

tmpdat =
     1     2
XCtemp =
     1
     2     

I'm not sure what's going wrong with your code