[Gretl-devel] Re: Probably a bug in stringify()
Am 02.11.2020 um 13:39 schrieb Allin Cottrell:
On Mon, 2 Nov 2020, Artur Tarassow wrote:
> works only for very special case which may confuse the user.
True, it
> is convenient but can be realized by a two-liner:
> <>
> series s = {1; 2; 3}
> stringify(s, defarray("hey", "ho", "aha"))
> </>
...
On your two-liner: Yes, that's fine in the simple case, but here's the
sort of thing I had in mind (converted to Sven's style):
nulldata 8
strings S = defarray("A", "B", "B", "A",
"D", "D", "C", "B")
series sx = S
That is, your primary data take the form of a sequence of strings, and
the proposed syntax allows you to create a series without the need to
compute the numerically encoded counterpart yourself.
Exactly - BTW in this context it might in principle also be useful to
have a function that constructs a mapping from the strings array to a
vector of numerical (integer) codes. Doesn't have to be C, could be
hansl, and I personally haven't needed it so far. Still I could give it
a try with hansl if that's wanted.
cheers
sven