Hello Joe,
I ran into the same problem when I manually calculated some Odds
Ratios about a year ago and got somewhat different results. As
nearly as I could reckon, AntConc uses a sort of quasi
Haldane-Anscombe correction, which involves adding 0.5 when there
are 0 frequency items. I say "quasi" as true HA correction would
entail adding 0.5 to all values, whereas AntConc seems to
substitute 0.5 for whichever frequency is 0 but leaves the other
values unchanged. The discrepancy, however, is negligible unless
all the other frequencies are also quite low, in which case the
+0.5 starts to make a difference.
Best,
Daniel
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Hello Joe,
I ran into the same problem when I manually calculated some Odds Ratios about a year ago and got somewhat different results. As nearly as I could reckon, AntConc uses a sort of quasi Haldane-Anscombe correction, which involves adding 0.5 when there are 0 frequency items. I say "quasi" as true HA correction would entail adding 0.5 to all values, whereas AntConc seems to substitute 0.5 for whichever frequency is 0 but leave the other values unchanged. The difference, however, is negligible unless all the other frequencies are also quite low, in which case the +0.5 starts to make a difference.
Best,
Daniel
On 01/04/2020 11:10, Joe Geluso wrote:
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Daniel HENKEL
Maître de Conférences (Linguistique et Traduction)
UFR5 LLCE-LEA • EA1569 TransCrit
Université Paris 8 Vincennes-St-Denis
“non si può stendere una tipologia delle traduzioni, ma al massimo una tipologia di diversi modi di tradurre, volta per volta negoziando il fine che ci si propone
– e volta per volta scoprendo che i modi di tradurre sono più di quelli che sospettiamo.” U. Eco