add m-files to octave

[Cerny]

I need to download some m-files for my linear algebra class and i can't figure out where to place the files in order for octave to find them. If anyone knows where they would be placed that would be great.

[dedmonds]

I believe you can add the directory in which the m-files are located to the search path that octave uses using the addpath command as shown below:


octave:2> addpath("/home/dedmonds/octave/mfiles/");


This will not survive through a shutdown of the program, so you would have to do this each time you start octave.

I believe you can also run the path command to see the directories currently in the octave search path. You can place your m-files in one of these directories and, octave should find them.


octave:3> path

Octave's search path contains the following directories:

.
/home/dedmonds/octave/mfiles
/usr/local/share/octave/site-m
/usr/lib/octave/3.0.0/oct/i486-pc-linux-gnu
/usr/share/octave/3.0.0/m
/usr/share/octave/3.0.0/m/deprecated
/usr/share/octave/3.0.0/m/audio
/usr/share/octave/3.0.0/m/control
/usr/share/octave/3.0.0/m/control/obsolete
/usr/share/octave/3.0.0/m/control/base
/usr/share/octave/3.0.0/m/control/hinf
/usr/share/octave/3.0.0/m/control/system
/usr/share/octave/3.0.0/m/control/util
/usr/share/octave/3.0.0/m/geometry
/usr/share/octave/3.0.0/m/elfun
/usr/share/octave/3.0.0/m/finance
/usr/share/octave/3.0.0/m/general
/usr/share/octave/3.0.0/m/linear-algebra
/usr/share/octave/3.0.0/m/image
/usr/share/octave/3.0.0/m/io
/usr/share/octave/3.0.0/m/plot

[wangji]

I need to download some m-files for my linear algebra class and i can't figure out where to place the files in order for octave to find them. If anyone knows where they would be placed that would be great.

you can put whereever you want ! just do in an octave session

addpath(genpath("/path_where_you_want/";
savepath;

and all the where_you_want including subdirs behind are included
and even saved for subsequent sessions

[random_a]

My Matlab code in Octave gives an error when a class is referenced as;

MY_ITEM = items.A(param);


where "items" is defined as a directory named as "+items" under the current directory. The file A.m is under the +items directory.

The error message is:

'items' undefined near line xxx...

How do I make it run under Octave ?

Thanks.



you can put whereever you want ! just do in an octave session

addpath(genpath("/path_where_you_want/";
savepath;

and all the where_you_want including subdirs behind are included
and even saved for subsequent sessions

[carandraug]

My Matlab code in Octave gives an error when a class is referenced as;

MY_ITEM = items.A(param);


where "items" is defined as a directory named as "+items" under the current directory. The file A.m is under the +items directory.

The error message is:

'items' undefined near line xxx...

How do I make it run under Octave ?

Thanks.

First you should have created your own thread for this question. Anyway, on to solve your problem.

I don't know much about OOP but I think you need octave 3.2 for that. Check first which one you are using with the command version.

I think items.A means the variable A in the structure items but maybe it works different with OOP. Try asking in the octave mailing list, they are very helpful help-octave@octave.org.

[random_a]

Thanks for your useful comments.