[R] Step wise regression

[Renaud Lancelot]

Frank E Harrell Jr a écrit :
> walmir-rodrigues wrote:
> 
>> Dear Fellows,
>>
>> How can I do to proced a step wise regression in R, if it´s possible ?
>>
>> Thanks,
>>
>> Walmir 
> 
> 
> Here is an easy approach that will yield results only slightly less 
> valid than one actually using the response variable:
> 
> x <- data.frame(x1,x2,x3,x4,..., other potential predictors)
> x[,sample(ncol(x))]
> 
> :-)   -Frank
> 
> 
competing for the "fortune" award ?... ;-)

Renaud

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