How to position a legend in Octave 3.8.1 (and further 4.0.0)

[Dominique Richard]

Hello,
   With Octave 3.2.4 I used the following syntax to position the legend of a 
multiple curve plot
legend("curve_1","curve_2","curve_3", 'location', 'northeast')

but with Octave 3.8.1 This doesn't seem t be correct anymore and I get the 
following error message:
set: invalid value for radio property "location" (value = northeast)

Did I miss something ? In the Function Reference I read this syntax seems to 
still  be legitimate.
If not , what is the correct one ?

Thanks for your help


--
Dominique RICHARD
Laboratoire de Génie des Procédés Catalytiques - CNRS-CPE Lyon
3, rue Victor Grignard F-69616 Villeurbanne cedex
Tél. (33) 4 72 43 17 52 - Fax (33) 4 72 43 16 73