Mr Ray I am not a user of the TreeDisc macro, just a helper on SAS-L.

If you have found two versions and one has a later note about fixes then I recommend you use that one; especially if Michael Friendly fixed it. He is a well-known author in the SAS Books By User program.

Ron Fehd the macro maven CDC Atlanta GA USA RJF2 at cdc dot gov

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From: Jean-Claude RAY [mailto:Jean-Claude.Ray@univ-nancy2.fr] Sent: Wednesday, August 13, 2008 5:53 AM To: Fehd, Ronald J. (CDC/CCHIS/NCPHI) Subject: TREEDISC macro

Dear Ronald,

As far as the TREEDISC macro is concerned, the reason why I was looking for a TREEDISC version from the official SAS site is that I am a little bit confused by the fact that, among the several versions of TREEDISC available on the Internet I did found ( http://www.psych.yorku.ca/friendly/lab/files/macros/treedisc.sas <http://www.psych.yorku.ca/friendly/lab/files/macros/treedisc.sas> , http://www.public.iastate.edu/~kkoehler/stat557/sas/treedisc.sas and http://www.uwm.edu/IMT/MiscDocs/~doc/sas/samples/iml/treedisc.sas), while the latter is clearly out of date (10May94), it is unclear which version, among the two first, is the best :

1) the UWM version (the one Lex Jansen, on SAS-L, advise me) looks like been the latest :

/* UPDATE: 25Aug95 */ /* MISC: Bug with LEAF= and NOMINAL= fixed 03Dec93 */ /* Added color options for DRAW=GR 07Mar94 */ /* Added POS= option for DRAW=GR 10May94 */ /* Added INTO_, TIE_, and POST_ to */ /* OUTTREE= data set 3Sep94 */ /* Added PFORMAT= option 17Oct94 */ /* Bug in CODE= with unformatted ordinal */ /* character variable fixed 15Nov94 */ /* Changed 2nd arg in PROBF call from */ /* 1e10 to 1e9 due to 6.11 limit 25Aug95 */

/*********************************************************************** *******/

2) But the YORKU version (advised by Arthur Tabachneck on SAS-L) is probably, in fact, the most recent one, because, while beginning with:

/* UPDATE: 15Nov94 */ /* MISC: Bug with LEAF= and NOMINAL= fixed 03Dec93 */ /* Added color options for DRAW=GR 07Mar94 */ /* Added POS= option for DRAW=GR 10May94 */ /* Added INTO_, TIE_, and POST_ to */ /* OUTTREE= data set 3Sep94 */ /* Added PFORMAT= option 17Oct94 */ /* Bug in CODE= with unformatted ordinal */ /* character variable fixed 15Nov94 */

/*********************************************************************** *******/

it mentions immediately after this frame:

/* Revised: 11 Aug 2005 10:24:15 M. Friendly - Fixed bug in pvalues module - Include XMACRO from filename macros */

Do you think I would be wrong in using preferably this second version? Maybe, both are equivalent...

If SAS Institute did maintain on its official Web site a "latest versions catalog" of SAS macros, it will avoid users time-consuming detailed comparisons among the various versions searched over the Internet.

Anyway, thank you very much, again, for your nice help

Jessie