Re: [Gretl-users] csv date parsing
On Thu, 20 Nov 2008, Sven Schreiber wrote:
Am 19.11.2008 23:08, Allin Cottrell schrieb:
> On Wed, 19 Nov 2008, Sven Schreiber wrote:
>>
>> Bottom line: IMHO gretl's import mechanism should also allow reverse
>> chronological ordering, which at present apparently it doesn't.
>
> It doesn't, but it's easy enough to reverse the data in gretl (as
> in the Cheatsheet chapter of the manual):
>
> genr sortkey = -obs
> dataset sortby sortkey
This by itself is already interesting, and although I had checked the
relevant chapter of the guide, I didn't look in the cheatsheet chapter.
Thanks for the pointer. One follow-up question here: would 'dataset
sortby -obs' also work, or is the genr line necessary?
I think the genr line is necessary.
I've now done some work on auto-reversing backwards data. Not
guaranteed to work in all cases, but on some simple tests it seems
OK.
Allin.