[R] t.test

[Gavin Simpson]

On Fri, 2010-02-05 at 17:44 +0100, ErikRH wrote:
> Hello! I have a fairly simple (I guess) question. Suppose I have a table
> like this:
> 
>      Score          Group
> 1   <numeric>   Ctrl
> 2   <numeric>   Ctrl
> .    ...        ...
> 10  <numeric>  Treat
> 11  <numeric>  Treat
> ..   ...      ...
> 25  <numeric>  Treat
> 
> What is(are) the simplest command(s) in R to perform an ordinary t-test for
> significant difference between the control group and the treatment group?

?t.test

G

-- 
%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%
 Dr. Gavin Simpson             [t] +44 (0)20 7679 0522
 ECRC, UCL Geography,          [f] +44 (0)20 7679 0565
 Pearson Building,             [e] gavin.simpsonATNOSPAMucl.ac.uk
 Gower Street, London          [w] http://www.ucl.ac.uk/~ucfagls/
 UK. WC1E 6BT.                 [w] http://www.freshwaters.org.uk
%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%