[R] Calculating Mean

[Ivan Calandra]

Hi Laura,

I think you're looking for aggregate()
See ?aggregate

If you had posted a reproducible example, I could have given you a more 
detailed answer. Learn to use the dput() function to do so.
If you're very new to R, maybe this could help you get started: 
http://www.burns-stat.com/documents/tutorials/impatient-r/

HTH,
Ivan

--
Ivan CALANDRA
Université de Bourgogne
UMR CNRS/uB 6282 Biogéosciences
6 Boulevard Gabriel
21000 Dijon, FRANCE
ivan.calandra at u-bourgogne.fr
http://biogeosciences.u-bourgogne.fr/calandra

Le 03/06/13 11:15, Laura Thomas a écrit :
> Hi All,
>
> Sorry about this quite basic, but I am very new to R.
>
> I have a data file which has a dependent variable (reaction time) and a couple of independent variables, one of which is coded 1-8; I want to calculate the reaction time for each of the 8 codes of the independent variable.
>
> Thanks for any help,
>
> Laura
>
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