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From | "Philip Ryan" <philip.ryan@adelaide.edu.au> |
To | <statalist@hsphsun2.harvard.edu> |
Subject | st: RE: RE: new version of -rct_minim- available |
Date | Thu, 7 Oct 2010 15:33:54 +1030 |
<<..>> Nick Cox pointed out that Paul Millar's program -matsort-, which is a required subroutine for my program -rct_minim-, may only be used for non-commercial purposes. In a vague and unspecified way, this was always my intention for -rct_minim-, and in fact it was initially produced for teaching purposes. Paul Millar has always been given explicit credit for -matsort- in the help file. Nevertheless, Nick is quite right to indicate that the full stipulations of our programming colleagues should be respected. Subsequently, Kit Baum, suggested some Mata code to avoid the use of -matsort-. In the first instance I have asked Kit to change the description of -rct_minim- on the SSC server to reflect Paul Millar's injunction, and propagate it to my program: -rct_minim- should, for the present, only be used for non-commercial purposes. I have also added a line of non-executed code to the header of -rct_minim- such that a call to -which rct_minim- will show the injunction. Kit has already done this (thanks Kit). When time for appropriate testing permits, I will produce a new version of -rct_minim- embedding Kit's suggested Mata code, and then remove both the need for -matsort- and the injunction from -rct_minim-. Thanks again to Nick and Kit. Phil Philip Ryan Professor and Director Data Management & Analysis Centre [DMAC] Discipline of Public Health University of Adelaide 5005 South Australia -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nick Cox Sent: Thursday, 7 October 2010 4:32 AM To: 'statalist@hsphsun2.harvard.edu' Subject: st: RE: new version of -rct_minim- available Note that -matsort- includes the injunction "This software can be used for non-commercial purposes only." Nick n.j.cox@durham.ac.uk Philip Ryan Thanks to Kit Baum a new version of -rct_minim- is now available for download from the SSC server. -rct_minim- assigns treatments to subjects in a controlled trial in such a way as to minimize the imbalance in prognostic factors. It is based on Pocock and Simons' paper (Biometrics 1975; full reference in the help file). New features are: (i) implementation of P&S' third method for choice of bias assignment (see P&S section 3.3) (ii) an option to delay the minimisation process until after the first # subjects have been allocated their treatment. These # subjects are allocated their treatment at random, a strategy some authorities recommend to better maintain blinding. In the command line, type: ssc describe rct_minim Note that -rct_minim- requires that Paul Millar's -matsort- program is installed. -matsort- is also available from the SSC site. * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/