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SENSPEC: Stata module to compute sensitivity and specificity results saved in generated variables

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Author Info

  • Roger Newson

    ()
    (National Heart and Lung Institute at Imperial College London)

Abstract

senspec inputs a reference variable with two values and a quantitative classification variable. It creates, as output, a set of new variables, containing, in each observation, the numbers and/or rates of true positives, true negatives, false positives and false negatives observed if the classification variable is used to define a diagnostic test, with a threshold equal to the value of the classification variable for that observation. The reference variable indicates the true state of the observation, such as diseased and non-diseased, or normal and abnormal. The rating or outcome of the diagnostic test is recorded in the classification variable. senspec is similar to roctab, but produces output variables instead of plots and listings, so that users can create plots and listings in their own chosen formats.

Download Info

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File URL: http://fmwww.bc.edu/repec/bocode/s/senspec.ado
File Function: program code
Download Restriction: no

File URL: http://fmwww.bc.edu/repec/bocode/s/senspec.hlp
File Function: help file
Download Restriction: no

Bibliographic Info

Software component provided by Boston College Department of Economics in its series Statistical Software Components with number S439801.

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Programming language: Stata
Requires: Stata version 8.0
Date of creation: 17 Jun 2004
Date of revision: 20 Oct 2006
Handle: RePEc:boc:bocode:s439801

Note: This module should be installed from within Stata by typing "ssc install senspec". Windows users should not attempt to download these files with a web browser.
Contact details of provider:
Postal: Boston College, 140 Commonwealth Avenue, Chestnut Hill MA 02467 USA
Phone: 617-552-3670
Fax: +1-617-552-2308
Email:
Web page: http://fmwww.bc.edu/EC/
More information through EDIRC

Order Information:
Web: http://repec.org/docs/ssc.php

Related research

Keywords: sensitivity; specificity;

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