FWRITE File Write Function

Usage

Writes an array to a given file handle as a block of binary (raw) data. The general use of the function is

  n = fwrite(handle,A)

The handle argument must be a valid value returned by the fopen function, and accessable for writing. The array A is written to the file a column at a time. The form of the output data depends on (and is inferred from) the precision of the array A. If the write fails (because we ran out of disk space, etc.) then an error is returned. The output n indicates the number of elements successfully written.

Example

Heres an example of writing an array of 512 x 512 Gaussian-distributed float random variables, and then writing them to a file called test.dat.

--> A = float(randn(512));
--> fp = fopen('test.dat','wb');
--> fwrite(fp,A);
--> fclose(fp);