My FIO function work very well with a number as Axis.

No need to call it with a string as Axis, especially if your interpreter forbid 
it.

Xtian.

On 2017-01-05 21:45, Xiao-Yong Jin wrote:

On Jan 5, 2017, at 8:36 PM, Christian Robert <christian.rob...@polymtl.ca> 
wrote:

First of all, ⎕FIO does not exist in any other APL interpreter I know of. 
Portability of what ?

Portability of any workspace/package that uses FILE_IO workspace.  If you have 
a package/workspace that uses FILE_IO workspace, you can expect this 
package/workspace work in other APL implementation without any modification, as 
long as someone create a FILE_IO workspace for that APL implementation which 
could employ non-portable bits of that implementation.


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