[R] factanal and plotting?

[Mark Wardle]

Dear Martin,

The plot you refer to is a scree plot.

One option (there are many) is to have a look at the nFactors package.
Despite its package description, it includes the function plotnScree.

You will find it helpful to search google for "scree plot R" and/or
use rseek.org as there are many possibilities.

Good luck.

Best wishes,

Mark


On 13/03/2008, Martin Kaffanke <technik at roomandspace.com> wrote:
> Hi there!
>
>  To make a good choice for the estimation of the number of usefull
>  factors.  And I'd like to plot a graph like:
>
>  http://de.wikipedia.org/wiki/Bild:Parallelanalyse.jpg
>
>  where I don't need the green line (random values).
>
>  But with
>
>  str(factanal(data, factors=10)) I cannot figure out where I can find the
>  values for plotting.
>
>  Can you please help me in this question?
>
>  Thanks,
>  Martin
>
>  --
>  Ihr Partner für Webdesign, Webapplikationen und Webspace.
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-- 
Dr. Mark Wardle
Specialist registrar, Neurology
Cardiff, UK