all,
Simon
> -Original Message-
> From: Jason Dunsmore [mailto:[EMAIL PROTECTED]
> Sent: 31 December 2003 15:13
> To: [EMAIL PROTECTED]
> Subject: [R] how to use apply on a two variable t-test
>
>
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On 12/31/03 09:12, Jason Dunsmore wrote:
>does anyone know how to use the apply function on a two-variable t-test?
>i've tried everything.
Suppose d1 and d2 are data frames, and you want to do a t test of
column 1 of d1 vs. column 1 of d2, column 2 of d1 vs. column 2 of
d2, and so on. Then
mappl
does anyone know how to use the apply function on a two-variable t-test?
i've tried everything.
apply(data[1:4],1,t.test) # works, but only a one-variable test
apply((data[1:4],data[5:9]),1,t.test) # returns a syntax error
i've also tried using the for loop:
for (i in 1:1000) t.test(data[i,1:4],
