MATLAB: How to read a .dat file, containing binary data

Question

The file is very large and ve to read by plotting those binary data without changing it to decimal format.

Answer 1

Ok. You need to open the file, for binary read access. Do that like this

 fid = fopen('D:\myfile.dat','r');

Then, you need to read out what is in the file. You know the file format. You can only read out a number of bytes at a time. To read out one byte, and treat it like an unsigned 8 bit integer:

 number = fread(fid,1,'*uint8');

To read out all the bytes as unsigned 8 bit integers:

 numbers = fread(fid,inf,'*uint8');

That number(s) will print to screen in the range of 0 to 255. If you want to see the binary sequence that actually exists in RAM:

 dec2bin(number)

To close the file:

 fclose all;