LDArray extension

[Yumda]

I am trying to understand the LDlist Objects, here is what I am confused about:
vocabList[1] = "alpha"
vocabList[2]= "Beta"
vocabList[3]= "Zeta"
vocabList[4] = "Eta"

newarray = LDList.Copy(vocabList)

textwindow.writeline(LDList.Count(newarray))

what I am confused is that the textwindow would come back that it is "0"

However. if using LDlist.createfromvalue, then LDlist.count will come back as 4, but if I tried to print the value in textwindow, there is nothing.
this is the test code I tried:
for i = 1 to ldlist.count(newarray)
textwindow.writeline(newarray[i])
endfor


So, what am I doing wrong here?