[Gretl-users] Issue with tramolin.gfn

Hello,  I came up upon an issue in gretl regarding the tramolin package.  I have tried to run the sample script from the package and I get the following error. The same error appears on all data sets I have tried.   Thanks you very much! gretl version 2017dCurrent session: 2018-04-03 12:15 ? include tramolin.gfn C:\Users\rosu000s\AppData\Roaming\gretl\functions\tramolin.gfntramolin 1.11, 2017-01-28 (Ignacio Diaz-Emparanza)? open data9-3.gdt Read datafile C:\Program Files\gretl\data\data9-3.gdtperiodicity: 4, maxobs: 87observations range: 1972:2 to 1993:4 Listing 10 variables:  0) const     1) period    2) reskwh    3) nocust    4) price     5) cpi       6) incm      7) cdd       8) hdd       9) pop      ? series price_c = tramolin(price)Data file is emptyData error Error executing script: halting> series price_c = tramolin(price)