[R] Monotonic interpolation

[roger koenker]

You might look at the monotone fitting available in the rqss()
function of the quantreg package.

url:    www.econ.uiuc.edu/~roger            Roger Koenker
email    rkoenker at uiuc.edu            Department of Economics
vox:     217-333-4558                University of Illinois
fax:       217-244-6678                Champaign, IL 61820


On Sep 6, 2007, at 10:03 AM, excalibur wrote:

>
>
>
> Le jeu. 6 sept. à 09:45, excalibur a écrit :
>
>>
>> Hello everybody, has anyone got a function for smooth monotonic
>> interpolation
>> (splines ...) of a univariate function (like a distribution
>> function for
>> example) ?
>
> approxfun() might be what your looking for.
>
> Is the result of approxfun() inevitably monotonic ?
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