ArrayToFile precision. Can the default precision be increased above 6 ?

[aaronwalsh]

I am using the ArrayToFile function which has a precision of 6 decimal places.  This is the default in the Formatting and I/O Library.

Is there a way to change the precision above 6 ?

Thanks in advance.

[RobertoBozzolo]

As stated in the function help, this is the precision used when saving in ASCII format and as far as I know it's not possible to alter it. Nevertheless, this precision is considered only when an ASCII file is produced: on a binary file the full double number is stored on disk so the maximum allowed precision is obtained with a significantly smaller file size at the cost of loosing human readability. If you need to write an ASCII file with more than six digits you will need to develop your own formatting function.

[aaronwalsh]

Thanks Roberto, I was in hope that a hidden attribute might be available.  Unfortunately I have to maintain compatibility with existing ASCII files so I will have to write my own function.