R help - May 2010 - R formula language---a min and max function?

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.

sincerely,

/iaw

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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