[R] chi-square distribution table

Marc Girondot marc_grt at yahoo.fr
Tue Dec 19 10:39:58 CET 2017


Le 18/12/2017 à 15:41, HATMZAHARNA via R-help a écrit :
> Please could you tell me how to make code to make chi-square 
> distribution table?
>
> Please help
>
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> and provide commented, minimal, self-contained, reproducible code.
>
To help you to begin to do a code that we could enhance, here are some 
functions that will be usefull for you:

 > qchisq(p=1-0.05, df=1)
[1] 3.841459

Then, using a range of df, from example 1 to 10:

 > qchisq(p=1-0.05, df=1:10)
  [1]  3.841459  5.991465  7.814728  9.487729 11.070498 12.591587 
14.067140 15.507313 16.918978 18.307038

To help to present a nice table:

 > X <- qchisq(p=1-0.05, df=1)
 > format(X, digits = 4+log10(X), width = 10)
[1] "     3.841"

Or use the xtable package

Sincerely

Marc



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