matrix lists

Tue, Feb 26, 2002 4:19 AM

Perhaps the following example will help demonstrate that matrix lists do
exist and do work up to a point, despite strident assertions on R-help to
the contrary:

[,1]        [,2]
[1,] "Numeric,3" "Numeric,1"
[2,] "Numeric,3" "Character,3"

[1] TRUE

[1] 3.141593

[1] "a" "b" "c"

In S m[2,2] extracts a sub-list, but that seems not to work correctly in R:
neither does m[,2].  I am reporting that as a bug.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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matrix lists

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