How can I install a package in Gnu Octave?

Question

How can I install a package in Gnu Octave? I have tried, for example, with the splines-package after downloading it in my home directory with:

Octave1>> pkg install splines-1.0.7.tar.gz

I get the following error message:

couldn't create installation directory /usr/share/octave/packages/3.2/splines-1.0.7     
: Permission denied
error: called from `pkg>copy_files' in file /usr/share/octave/3.2.4/m/pkg/pkg.m near line 1431, column 7
error: called from:
error:   /usr/share/octave/3.2.4/m/pkg/pkg.m at line 756, column 5
error:   /usr/share/octave/3.2.4/m/pkg/pkg.m at line 287, column 7

Answer 1

run Octave as SU:

sudo octave

and then try the same as You did.