[R] R formula language---a min and max function?

[David Winsemius]

On May 4, 2010, at 3:33 PM, ivo welch wrote:

> Dear R experts---I would like to estimate a non-linear least squares
> expression that looks something like
>
>   y ~ a+b*min(c,x)
>
> where a, b, and c are the three parameters.  how do I define a min
> function in the formula language of R?  advice appreciated.

?pmin

>
> sincerely,
>
> /iaw
>
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David Winsemius, MD
West Hartford, CT