Re: How to check for availability of functions in core octave

[Ben Abbott]

On Jul 29, 2011, at 2:32 PM, PhilipNienhuis wrote:

> Is there a user-function for checking if some function is present in core
> Octave?
> Something like  
>  isimplemented ("erfcx")
> ?
> 
> I'm looking at pkg.m to see if some check can be implemented there to skip
> copying m-files for which equivalent (and probably better) functionality is
> in core octave. This is somewhat motivated by:
> 
>   http://sourceforge.net/mailarchive/message.php?msg_id=26792800
> 
> and some experiences with maintenance of octave-forge packages.
> 
> Philip

Does this do what you want?

>> isimplemented = @(fun) exist (strcat(fun,".m")) == 2 || exist (fun) > 2;
>> isimplemented ("residue")
ans =  1
>> isimplemented ("erfcx")
ans =  1

Ben