[R] simple t test for multiple colimns

Jean-Christophe BOUËTTÉ jcbouette at gmail.com
Fri Sep 9 19:56:53 CEST 2011

The examples in ?t.test and ?formula will help you.
Don't forget "An Introduction to R" too to import your data in a data
frame first...

2011/9/9 Mihovil Pletikos <mihovil.pletikos at gmail.com>:
> hi
> i am new to r and i would like to how could i do something like this in
> spss:
> T-TEST GROUPS=who('1' '2')
>  /VARIABLES= X3881686 X2672712 X2842570 X3526544 X2902531 X2402942 X3382216
> X3771800 X2427469 X2392945 X2453006 X2562821 X3416651 X3552083 X3721851
> X2477438 X2926969 X3026969 X3442176 X3796335 X2622772 X3636470 X2952497
> X2367537 X3332276 X2427500 X2647315
> /CRITERIA=CI(.95).
> so i wouldn't have to enter the name of columns by hand, but automaticly
> ... please help me
> Mihovil
>        [[alternative HTML version deleted]]
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