It's not relevant to John's question but G. Udny Yule (1912, pp 150 -152)
refers to Galton's "Method of Percentiles" and "Ogive" curve.
best wishes for 2008
Jane Galbraith
...................................................................................
> Can anyone tell me anything about the "Galton Graph" please?
>
> It is referenced in Boddington (1934, pp.291-295), and seems to be
> essentially a scattergraph, but instead of plotting xi against yi, it
> plots
> xi/xbar against yi/ybar. The interpretation is close to what we might now
> interpret as elasticities from a log-log regression, i.e. "Thus for every
> 1
> per cent. change in the subject there is a tendency for the Relative to
> change .74 per cent. The complement of thuis fraction, viz. 0.26 is called
> the _ratio of regression_" (ibid. p.295)
>
> Quote a lot of unfamiliar terminology here - was it used elsewhere?
> Passing
> features of a new language, perhaps. ("Subject" and "Relative" seem to be
> what we would now call the explanatory and dependent variables.)
>
> JOHN BIBBY
>
>
> Boddington: Statistics and their application to commerce
>
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