[R-sig-Geo] How to interpret the "residual" values in plot(quadrat.test(some_data_set))

[Rolf Turner]

On Wed, 20 Dec 2023 05:56:19 +0000
Xiang Ye via R-sig-Geo <r-sig-geo using r-project.org> wrote:

<SNIP>

> According to what I learnt about the quadrat test (Rogersson and
> Yamada 2005, p. 48), and the help document from quadrat.test, I
> assume the "residual" should be (observed-expected)^2/expected.

<SNIP>

Just to reinforce what Roger Bivand has already told you (with
admirable clarity) --- the expression that you give above is for the
*square* of the (Pearson) residual, not the actual residual.

cheers,

Rolf Turner

-- 
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Department of Statistics
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