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Copper in Wholemeal Flour
-------------------------

Description
~~~~~~~~~~~

A numeric vector of 24 determinations of copper in wholemeal flour, in
parts per million.

Usage
~~~~~

::

    chem

Source
~~~~~~

Analytical Methods Committee (1989) Robust statistics – how not to
reject outliers. *The Analyst* **114**, 1693–1702.

References
~~~~~~~~~~

Venables, W. N. and Ripley, B. D. (2002) *Modern Applied Statistics with
S.* Fourth edition. Springer.
