Re: Friday musings: missing function thoughts

[Julien Bect]

Le 21/01/2017 à 00:30, Nicholas Jankowski a écrit :
> two big hurdles to octave's adoption: missing functions and 
> incompatibilities. The latter is usually dealt with pretty well. 
> Usually there's an error or bug and it gets handled when discovered.
>
> But for missing functions, it's hit or miss. there are probably 
> functions from old ml versions that still haven't been implemented. 
> And we're constantly chasing new version functions.
>
> I know there was a missing functions package. But it's last update was 
> 2009 and I think most functions don't work amymore. Maybe the website 
> changed?
>
> It would be great if there was a way to say: octave 4.x is fully 
> compatible with base Matlab 2012 or similar. Its a fixed point in time 
> and the function set won't change. When someone shows up asking what 
> to work on, you could say: well here's all that's left to get us 
> compatible with Matlab 2013... toolboxes are another issue.
>
> Has anyone looked to see if the information is available somewhere?

Documentations for older releases are not publicly available.  You need 
to log with a Mathworks user account to have access to them [1].

But the information that you're looking for is actually available in the 
public documentation (which, currently, is for R2016b).

For instance, if you look at the page for isequalwithequalnans [2], 
which unfortunately has been removed from Octave 4.2.0, you can see that 
has been introduced before R2006a (aka Matlab 7.2, [3]) and that it is 
still available, albeit not recommended, in R2016b.


[1] https://fr.mathworks.com/help/doc-archives.html
[2] https://fr.mathworks.com/help/matlab/ref/isequalwithequalnans.html
[3] https://en.wikipedia.org/wiki/MATLAB#Release_history