[R] Importing Data for a two sample t-test

[nilsonern]

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.



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