Linnerrud dataset

Notes
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Data Set Characteristics:
    :Number of Instances: 20
    :Number of Attributes: 3
    :Missing Attribute Values: None

The Linnerud dataset constains two small dataset:

- *exercise*: A list containing the following components: exercise data with
  20 observations on 3 exercise variables: Weight, Waist and Pulse.

- *physiological*: Data frame with 20 observations on 3 physiological variables:
   Chins, Situps and Jumps.

References
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  * http://rgm2.lab.nig.ac.jp/RGM2/func.php?rd_id=mixOmics:linnerud
  * Tenenhaus, M. (1998). La regression PLS: theorie et pratique. Paris: Editions Technic.