On 2012-11-14 20:52, nilsonern wrote:
I am trying to do a two sample t-test with data that i received in a text
document. one list has the slab weights and the second has the company it
is associated with. here is an example.
weights company
1 A
2 A
2 B
3 B
I was able to import the data but i cannot figure out how separate the data.
I want to put them in two separate sets, one being A and one being B. Any
help would be appreciated. Thanks.
Why separate? The 'long' form is generally preferred in
statistical analyses.
Just use the formula version of t.test().
Peter Ehlers
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