Interesting!
Both UK and US show quite a bit more "square" than "squared" in your
sample, with maybe an even stronger tendency for "square" in US than in UK.
I like "squared" better because it fits better with standard English
pronunciation of, say, \sigma^2 or x^2 or r^2.
On Mon, Oct 21, 2019 at 9:46 AM Ivan Krylov <krylov.r...@gmail.com> wrote:
> 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
>
--
Dan Dalthorp, PhD
USGS Forest and Rangeland Ecosystem Science Center
Forest Sciences Lab, Rm 311
3200 SW Jefferson Way
Corvallis, OR 97331
ph: 541-750-0953
ddalth...@usgs.gov
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