Re: [R] Interaction term in anova - how it should be written in a manuscript table?

From: Witold Eryk Wolski <W.E.Wolski_at_ncl.ac.uk>
Date: Mon 21 Mar 2005 - 20:03:21 EST

Thanks a lot

cheers
Eryk

Marc Schwartz wrote:

>For a me too post, I agree with Andy's recommendation, which in turn is
>supported by "How to Report Statistics in Medicine" by Lang and Secic,
>ACP, 1997. There is an example table (8.2) on page 133.
>
>HTH,
>
>Marc Schwartz
>
>On Sun, 2005-03-20 at 15:44 -0500, Liaw, Andy wrote:
>
>
>>I'd suggest a $\times$ b, as you'd find in most stat textbook.
>>
>>Andy
>>
>>
>>
>>>From: Witold Eryk Wolski
>>>
>>>Dear Rgurus,
>>>
>>>Interaction terms in the linear models function lm are
>>>specified by the
>>>colon :
>>>eg: x ~ a + b + a:b
>>>
>>>a shortcut for the above is:
>>> x ~ a*b
>>>
>>>the output if calling anova on the lm object will be the same
>>>in both cases
>>>
>>>a ....
>>>b ....
>>>a:b ...
>>>Resdiuals ...
>>>
>>>What I am wondering is how the interaction term (a:b) given
>>>above should
>>>be written in a table in an manuscript?
>>>
>>>a ) a*b
>>>b ) a$\cdot$ b
>>>c ) a:b
>>>d) ....
>>>
>>>Cheers Eryk.
>>>
>>>
>>>
>
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>
>
>
>

-- 
Witold Eryk Wolski
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Received on Mon Mar 21 20:07:51 2005

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