[R] Function to convert categorical variable in numerical

Mark Difford mark_difford at yahoo.co.uk
Thu May 24 11:55:04 CEST 2007


Hi J. Andres,

You are probably better off using the ade4 package, which has two functions
that will do exactly what you want, i.e. a PCA using mixed quantitative and
categorical variables:

## You will need to download ade4 first
library(ade4)
?dudi.hillsmith
?dudi.mix

Regards,
Mark Difford.



J.Andrés Martínez wrote:
> 
> Hello everybody,
> 
> I am a new R user. At current moment I need to do a Principal Components
> Analysis with a table who contain mixed variables (categorical and
> numerical). There is some function available in R for transform these
> variables?
> 
> For example: I need transform the categorical variable X who has 3 classes
> in 2 numerical variables with 0s and 1s.
> 
> Thank you very much,
> J. Andres
> 
> 	[[alternative HTML version deleted]]
> 
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