Nico Met' ; 'R help'
Cc:
Sent: Monday, July 15, 2013 1:33 PM
Subject: Re: [R] t-test across columns
This may be close to what you want:
> t.val <- by(x, x$cat, function(y) if (min(table(y$name)>1)) {
+ t.test(val~name, y)})
> t.out <- do.call(rbind, sapply(t.val, f
--
David L Carlson
Associate Professor of Anthropology
Texas A&M University
College Station, TX 77840-4352
-Original Message-
From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On Behalf Of Nico Met
Sent: Monday, July 15, 2013 10:50 AM
To: R help
Subje
l p238921966_p.val
12.2 -0.3320635 0.7435689 3.365969 0.007199016
15.9 NA NA NA NA
A.K.
- Original Message -
From: Nico Met
To: R help
Cc:
Sent: Monday, July 15, 2013 11:50 AM
Subject: [R] t-test across co
Dear all,
I would like to do t-test across two columns "name" with different "cat"
with overall mean ("val").
(Removing if there is a single observation)
And finally, make a matrix with t-value and p-value associated with a name
(in rows) and cat (in columns)
dput(x)
structure(list(name = struc
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