On Fri, 18 Oct 2019 15:25:59 -0700
"Dalthorp, Daniel via R-help" <r-help@r-project.org> wrote:
> I'd like to see the statistics on it before jumping to a conclusion
> that the American preference is "chi-square" and the British
> preference is "chi-squared".
One way to get some data on this would be to count Scopus hits for
various usages in articles with different affiliations, with a query
like this:
{<usage #1>}
AND PUBYEAR > 1980
AND AFFILCOUNTRY(<country #1>)
AND NOT (
AFFILCOUNTRY(<country #2>)
OR {<usage #2>} OR {<usage #3>} OR {<usage #4>}
)
The year cutoff is here to show only the "modern usage" (the trends
look the same whether I leave it in or not). Intersections (papers with
authors from both countries and/or using more than one form) are a
minority and don't seem to reverse any trends, either. Here are the
results:
UK US
chi-square 4666 30159
chi-squared 1374 4798
chi square 769 3844
chi squared 142 197
"chi-square" seems to be the most popular form.
--
Best regards,
Ivan
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