morphmet
Thu, 11 Feb 2010 07:32:09 -0800
-------- Original Message --------Subject: RE: Purpose of the "use scale factor" option in tpsUtil: convert tps to CSV
Date: Tue, 09 Feb 2010 21:43:00 -0500 From: F. James Rohlf <ro...@life.bio.sunysb.edu> Organization: Stony Brook University To: morphmet_modera...@morphometrics.org References: <4b71c215.2000...@morphometrics.org> A weight matrix cannot be stored in a TPS so the "use scale factor" option is not relevant. The option is relevant when converting a tps file (which is always a 'data file' giving landmark coordinates) to an NTS file. The coordinates are in pixel units in a TPS file. If that option is checked then the coordinates will be multiplied by the scale factor when stored in an NTS file. ---------------------- F. James Rohlf, Distinguished Professor Dept. Ecology and Evolution, Stony Brook University, NY 11794-5245 -----Original Message----- From: morphmet [mailto:morphmet_modera...@morphometrics.org] Sent: Tuesday, February 09, 2010 3:14 PM To: morphmet Subject: Purpose of the "use scale factor" option in tpsUtil: convert tps to CSV -------- Original Message -------- Subject: Purpose of the "use scale factor" option in tpsUtil: convert tps to CSV Date: Thu, 4 Feb 2010 14:24:51 -0500 From: Travis Haas <travis.c.h...@gmail.com> To: morphmet@morphometrics.org I'm unsure of the use of the "use scale factor" option in the tpsUtil program when converting a tps format weight matrix to a CSV format weight matrix. I assumed (perhaps wrongly?) that the scale factor was incorporated into the weight matrix when initially calculated. After reading the help file, I remain confused. What is the effect of "using scale factor" when converting formats? Travis Haas Ph.D. Student Dept. Ecol. and Evol. Biol. Tulane Univ. New Orleans, LA -- For now, new message AND replies should be sent to: morphmet_modera...@morphometrics.org /* Replies will be sent to the list. */ For more information visit http://www.morphometrics.org -- For now, new message AND replies should be sent to: morphmet_modera...@morphometrics.org /* Replies will be sent to the list. */ For more information visit http://www.morphometrics.org