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Re: st: roctg


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: roctg
Date   Tue, 8 May 2012 09:09:04 +0100

-roctg- is a user-written program from SJ. Please remember that you
are asked to explain where user-written programs you refer to come
from.

SJ-2-4  st0025  . . . . . . . . .  Two-graph receiver operating characteristic
        (help roctg if installed) . . . . . . . . . . . . .  M. E. Reichenheim
        Q4/02   SJ 2(4):351--357
        command for visualizing sensitivity and specificity curves
        according to the range of values of a new diagnostic test,
        given a "true" state of an event, the reference test

-roctg- is trying to -post- results to a temporary file and failing.
My guess is that you are working in a directory or folder, perhaps on
a server, in which you have no write permission, i.e. you cannot
create new files.

Nick

On Tue, May 8, 2012 at 6:26 AM, Sid Trivedi <s.trivedi@auckland.ac.nz> wrote:

> I am trying to graph sens/spec versus cut off values using the roctg command
>
> Var 1 is binary
> Var 2 continuous
>
> Previous tabulation using the roctab command generated 50 cut off values
>
> roctg var1 var2, cont interval (50)
>
> Gives me, post __000003 not found
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