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Re: st: ROC question: STATA vs SPSS


From   Anders Alexandersson <andersalex@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: ROC question: STATA vs SPSS
Date   Thu, 28 Jul 2011 16:17:39 -0400

Please provide the syntax and outputs in SPSS and Stata if you need
help with interpreting any output differences.

Anders Alexandersson
andersalex@gmail.com

On Thu, Jul 28, 2011 at 3:53 PM, Danielle Boyce <dmboyce1@yahoo.com> wrote:
> Hi,
>
> I usually use STATA for my data analysis, but for various reasons, ran one in SPSS first.  It gave me a negative cutoff point when my data have no negative values.  I re-ran in STATA and got the same AUC, but no negative cutoff, and everything else (CIs, cutoffs) are ever-so-slightly off compared to SPSS.
>
> I'm just wondering if anyone knows why this discrepancy exists.
>
> Thanks!
> Danielle
>
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