Statistics and Data Analysis for Microarrays Using R and Bioconductor, 2nd Edition

Introduction to R 159

> keno_prob(80,10,22,allwins)

[1] 3.927e-07 1.752e-05 3.210e-04 3.196e-03 1.923e-02

[6] 3.169e-02

This is probably as good as it gets in terms of simplicity and efficiency. Fur-

thermore, note that the function keno_prob was defined without any special

precautions about the eventuality of any of the arguments being a vector.

This is a good e xample of R’s philosophy. Flexibility and efficiency are held in

greatest regard a t the expe nse of the ability to catch errors. Indeed, the defi-

nition of the function did not require us to specify any specific type for any of

its arguments. R will accept almost anything as an actual argument a