[R] chi square table

Simon Blomberg s.blomberg1 at uq.edu.au
Fri Nov 7 03:00:36 CET 2008


> qchisq(0.01, df=8, lower.tail=FALSE)
[1] 20.09024
> 

See ?dchisq


On Fri, 2008-11-07 at 09:47 +0800, cruz wrote:
> Hi,
> 
> How do we get the value of a chi square as we usually look up on the
> table on our text book?
> 
> i.e. Chi-square(0.01, df=8), the text book table gives 20.090
> 
> > dchisq(0.01, df=8)
> [1] 1.036471e-08
> > pchisq(0.01, df=8)
> [1] 2.593772e-11
> > qchisq(0.01, df=8)
> [1] 1.646497
> >
> 
> nono of them give me 20.090
> 
> Thanks,
> cruz
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
-- 
Simon Blomberg, BSc (Hons), PhD, MAppStat. 
Lecturer and Consultant Statistician 
Faculty of Biological and Chemical Sciences 
The University of Queensland 
St. Lucia Queensland 4072 
Australia
Room 320 Goddard Building (8)
T: +61 7 3365 2506
http://www.uq.edu.au/~uqsblomb
email: S.Blomberg1_at_uq.edu.au

Policies:
1.  I will NOT analyse your data for you.
2.  Your deadline is your problem.

The combination of some data and an aching desire for 
an answer does not ensure that a reasonable answer can 
be extracted from a given body of data. - John Tukey.



More information about the R-help mailing list