help with bwmorph on OS X

[Justin MacCarthy]

I just downloaded octave , so be gentle. OS X binary.

I have a *.m script that uses the  bwmorph function
When I try to use that function ...

octave-3.2.3:17> help bwmorph
error: help: `bwmorph' not found
octave-3.2.3:17> bwmorph
error: `bwmorph' undefined near line 17 column 1
octave-3.2.3:17> bwmorph()
error: `bwmorph' undefined near line 17 column 1
octave-3.2.3:17> help bwmorph
error: help: `bwmorph' not found
octave-3.2.3:19> x = bwmorph('my.jpg')
error: `bwmorph' undefined near line 19 column 5
octave-3.2.3:19> x = bwmorph('my.jpg','thin',3)
error: `bwmorph' undefined near line 19 column 5


Any ideas ????