[R] Correlation question (from a newbie)

[David Winsemius]

On Jul 14, 2009, at 10:34 PM, Santosh wrote:

> Hi R-users,
>
> Was wondering if there is a way to quickly compute correlations  
> between
> continuous variables grouped by some categorical variables?
>
> What function do I use?
>

?tapply
?by

> Thanks much in advance.
>
> Regards,
> Santosh
>
> 	[[alternative HTML version deleted]]


David Winsemius, MD
Heritage Laboratories
West Hartford, CT