On Mon, Aug 9, 2010 at 6:43 AM, Harsh <singhal...@gmail.com> wrote:
> Hello useRs,
> I have a problem at hand which I'd think is fairly common amongst
> groups were R is being adopted for Analytics in place of SAS.
> Users would like to obtain results for logistic regression in R that
> they have become accustomed to in SAS.
> Towards this end, I was able to propose the Design package in R which
> contains many functions to extract the various metrics that SAS
> reports.
> If you have suggestions pertaining to other packages, or sample code
> that replicates some of the SAS outputs for logistic regression, I
> would be glad to hear of them.
> Some of the requirements are:
> - Stepwise variable selection for logistic regression
> - Choose base level for factor variables
> - The Hosmer-Lemeshow statistic
> - concordant and discordant
> - Tau C statistic

For stepwise logistic regression using AIC see:


For specifying reference level:


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