[R] restructuring matrix

[Moshe Olshansky]

If your original matrix is A then 
unique(A$People) and unique(A$Desc) 
will produce a vector of different people and a vector
of different descriptions.

--- yoooooo <magno_yu at ml.com> wrote:

> 
> Hi all, 
> 
>     let's say I have matrix
> 
> People    Desc    Value
> Mary      Height    50
> Mary      Weight   100
> Fanny    Height     60
> Fanny     Height    200
> 
> Is there a quick way to form the following matrix? 
> 
> People   Height    Weight
> Mary      50         100
> Fanny     60        200
> 
> (Assuming I don't know the length of people/desc and
> let's say these are
> characters matrix.. I tried play with row(), col(),
> etc.. but I don't seem
> to find like a duplicate match function... 
> I'm trying to write some one/two liner that convert
> my resulting matrix to
> vector and pick the appropriate fields.. etc )
> 
> Thanks!
> 
> -- 
> View this message in context:
>
http://www.nabble.com/restructuring-matrix-tf3991741.html#a11334950
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> Nabble.com.
> 
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