problem with convhulln

Hi my name is noé alvarado I want to find de convex hull of the next point:

xyzw = [1 -1 -1.375 0;-0.5 -0.8 -0.2830 0;-1.3 0.7 0.217 0;1.5 1.3 1.74 0;0.6 0 0 0]

xyzw =

    1.0000   -1.0000   -1.3750         0
   -0.5000   -0.8000   -0.2830         0
   -1.3000    0.7000    0.2170         0
    1.5000    1.3000    1.7400         0
    0.6000         0         0         0
tess = convhulln(xyzw)

however i have the error: Error using ==> qhullmx The data is degenerate in at least one dimension - ND set of points lying in (N+1)D space.

Could yoyu help me?

thanks

[Oleg Komarov]

Although "different" authors, duplicate with http://www.mathworks.com/matlabcentral/answers/32888-problem-with-convhulln.

[Noe alvarado]

sorry my mistake,