gretl version 1.9.92
Current session: 2015-03-14 16:31
? open greene22_2
Read datafile C:\Program Files\gretl\data\greene\greene22_2.gdt
periodicity: 1, maxobs: 601
observations range: 1 to 601
Listing 10 variables:
0) const 1) Y 2) Z1 3) Z2 4) Z3
5) Z4 6) Z5 7) Z6 8) Z7 9) Z8
? discrete Z5
? list X=dummify(Z5) --drop-first
> list X=dummify(Z5) --drop-
The symbol 'drop' is undefined
Error executing script: halting
> list X=dummify(Z5) --drop-first
"
why did i encounter the error?
best,