R help - Jan 2008 - Form Pairs of Variables for a paired t-test

Hi Users,
   
  This is regarding the paired t-test. I have 5 variables (say)
Data$v1,Data$v2,Data$v3,Data$v4,Data$v5 in my data frame. Now, I need to perform
a paired t-test on all the possible 10 pairs.How do I set up the pairs table
directly and pass those variables in to t-test.
   
  Thanks in advance,
   
  Pratap

       
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Try this:

lapply(apply(combn(ncol(x),2), 2, function(y)x[,y]),
function(z)t.test(z[,1], z[,2]))

On 29/01/2008, nalluri pratap <pratap_stat at yahoo.co.in>
wrote:
> Hi Users,
>
>   This is regarding the paired t-test. I have 5 variables (say)
Data$v1,Data$v2,Data$v3,Data$v4,Data$v5 in my data frame. Now, I need to perform
a paired t-test on all the possible 10 pairs.How do I set up the pairs table
directly and pass those variables in to t-test.
>
>   Thanks in advance,
>
>   Pratap
>
>
> ---------------------------------
>  Now you can chat without downloading messenger. Click here to know how.
>         [[alternative HTML version deleted]]
>
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