[R] New Vars in Data Frame Not Visible (was: no subject)

Marc Schwartz MSchwartz at MedAnalytics.com
Thu Mar 17 05:16:33 CET 2005


On Thu, 2005-03-17 at 14:43 +1100, Simon Blomberg wrote:
> I assume "opened a data set" means that you have attached a data 
> frame. If you add new variables to the data frame (e.g. by 
> transforming a variable in that data.frame), you will have to 
> detach() and re- attach() it in order to get access to the variables 
> without using the $ operator. I think this is in the manual somewhere.

<snip>

"An Introduction To R", Section 6.3.2 "attach() and detach()",
starting on page 27 and continuing on page 28.

HTH,

Marc Schwartz




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