a handy function "format.cardinal", looking for a proper name..

[Philippe Lambert]

On Thu, 19 Mar 1998, Martin Maechler wrote:

> This is not a nice name (format is generic; cardinal is not a class) for a
> nice function, which I would like in several places in R code and therefore
> would like to become part of R  (under a better name !)
> 
> format.cardinal <- function(i, sep="")
>         paste(i, c("st","nd","rd","th")[pmin(4,i)], sep=sep)
> 
> # Try
> format.cardinal(sample(1:20))

Isn't it a problem?
> format.cardinal(22)
[1] "22th"

Philippe

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