Re: [R] printing PCA scores

2005-01-24 Thread Prof Brian Ripley
On Mon, 24 Jan 2005, Jari Oksanen wrote:
On Sat, 2005-01-22 at 17:31 -0500, Jérôme Lemaître wrote:
Hey folks,
I have an environmental dataset on which I conducted a PCA (prcomp) and I
need the scores of this PCA for each site (=each row) to conduct further
analyses.
Can you please help me with that?
Did you try help(prcomp) ?
It says that prcomp (may) return an item called 'x':
x: if 'retx' is true the value of the rotated data (the centred
 (and scaled if requested) data multiplied by the 'rotation'
 matrix) is returned.
[non-matching parentheses in the original help file]
What `non-matching parentheses'?  Try counting them: two ( and two )!
--
Brian D. Ripley,  [EMAIL PROTECTED]
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 272866 (PA)
Oxford OX1 3TG, UKFax:  +44 1865 272595__
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Re: [R] printing PCA scores

2005-01-24 Thread Jari Oksanen
On Sat, 2005-01-22 at 17:31 -0500, Jérôme Lemaître wrote:
> Hey folks,
> 
> I have an environmental dataset on which I conducted a PCA (prcomp) and I
> need the scores of this PCA for each site (=each row) to conduct further
> analyses.
> 
> Can you please help me with that?
> 
Did you try help(prcomp) ?

It says that prcomp (may) return an item called 'x':

x: if 'retx' is true the value of the rotated data (the centred
  (and scaled if requested) data multiplied by the 'rotation'
  matrix) is returned.

[non-matching parentheses in the original help file]

So this is what you asked for.

cheers, jari oksanen

-- 
Jari Oksanen <[EMAIL PROTECTED]>

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[R] printing PCA scores

2005-01-24 Thread Jérôme Lemaître
Hey folks,

I have an environmental dataset on which I conducted a PCA (prcomp) and I
need the scores of this PCA for each site (=each row) to conduct further
analyses.

Can you please help me with that?

Thanks a lot


Jérôme Lemaître

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