[Gretl-devel] Re: Bug reported at weekend

Gordon Hughes G.A.Hughes at ed.ac.uk
Fri Oct 17 10:55:03 EDT 2008

I apologise for not following up the replies to my e-mail earlier in 
this week, but I have been preoccupied with other business - in part 
the result of difficulties in trying to get Linux to work reliably on 
a new Thinkpad instead of Windows Vista.  The distributions I started 
with - Mandriva & Ubuntu - were unable to handle the wireless network 
and other hardware properly.  In addition, VMware Server, which I use 
to run Windows XP in a virtual machine, has become a large unwieldy beast.

Anyway, the problem raised in Allin's response really concerns the 
correct way of dealing with directories when writing sample 
scripts.  I have assumed that both of the scripts (example and 
function) plus the data are stored in the user's working 
directory.  The missing function identified by Allin "sfa_eff" is one 
component of the new (renamed) functions that I have not uploaded to 
the server, because I wanted to ensure that everything is properly 
documented and working reliably under different operating systems.

On my Windows system my working directory is E:\gretl\sfa_work, but 
it is different under Linux & Mac OS-X.  Maybe, every sample script 
should include an explicit statement of the assumption that is made 
along the following lines:

#  1.  Before executing this script, store dataset xxx.gdt and script 
files xxx.inp
#       and yyy.inp in a single directory - e.g. d:\gretl\work
#  2.  Use the GUI command File/Working directory to set this directory
#       - e.g. d:\gretl\work - as your working directory.

I can't access the ftp server at Wake Forest, so I have not checked 
whether the problem with numerical derivatives still occurs in the 
most recent Windows snapshot.



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