[R] Vegan package treatment of zeros

2013-05-15 Thread Michael Rentz
recognize 0s as absent I just wanted to make sure I was not inadvertently setting myself up for problems. Mike. PS: I am set up to just receive the daily digest, if you do not mind replying to both me and the list (or just me if the question is that dumb) I would be appreciative. -- Michael

[R] R Kaplan-Meier plotting quirks?

2012-10-16 Thread Michael Rentz
Hello. I apologize in advance for the VERY lengthy e-mail. I endeavor to include enough detail. I have a question about survival curves I have been battling off and on for a few months. No one local seems to be able to help, so I turn here. The issue seems to either be how R calculates Kaplan-

Re: [R] Kaplan-Meier plotting quirks

2012-10-19 Thread Michael Rentz
ction with the same equation as above; see help("predict.survreg") for an example of how to draw the resulting survival curve. Terry Therneau On 10/18/2012 05:00 AM, r-help-requ...@r-project.org wrote: -Original Message- From: Michael Rentz [mailto:rent0...@umn.edu] Sent: Tuesd

Re: [R] R help: reorder columns in an xyplot

2010-11-07 Thread Michael Rentz
Mr. Dunlap and Dr. Winsemius: Thank you both for your very quick, very handy, and very correct response. That was it. I only wish I had broken down and admitted defeat and asked for help hours ago. That was indeed what I needed, now the before does indeed come before the after! Thanks agai