Gradient Filled patch/fill

[Grant Stephens]

Hi

I am having trouble making a patch/fill figure with a gradient color. In matlab the following code would produce the diamond shaped object with the colors representing the random data which is the value at each point, however I cannot seem to do the same in octave. I have tested it in two versions, but not 3.6.1 and on mac and ubuntu.

 fill([0 1 5 4],[0 4 5 1],rand(4,1))

Thank You

Grant