[R] chi-squared test

[David Winsemius]

On Jan 5, 2010, at 8:53 PM, Xanthe Walker wrote:

> I would like to do a chi-squared test on the following matrix:
>
> CP<- 
> matrix 
> (c 
> (26,17,9,27,8,9,9,8,29,9,6,17,81,7,43,36,2,4,3,0,5,1,0,12,29,9,12,19,0,0 
> ),nrow=3)
>
> dimnames(CP) <-
> list 
> (c 
> ("less10 
> ","bt10and50 
> ","more50"),c("T10","T9","T8","T7","T6","T5","T4","T3","T2","T1"))
>
>
> I want to set the expected values as 26, 17, 9 (ie. the data from  
> T10).
>
> How do assign expected values and complete the Chi-squared test?

You ought to look (more closely?)  at the examples in chisq.test.
>
>
> Cheers

-- 


David Winsemius, MD
Heritage Laboratories
West Hartford, CT