search for: schonefeld

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2012 Jul 03
2
[Patch] upssched broken in version 2.6.4 with command with two arguments
...er and snprintfcat() just appends some stuff, i.e. the following command CANCEL onbatt online becomes onlineCANCEL "onbatt" "online" and is then sent to the pipe-fd. The attached patch replaces snprintfcat() with snprintf() and fixes the problem. Best, Oliver -- Oliver Schonefeld Institut f?r Deutsche Sprache, Zentrale Forschung R5, 6-13, D-68161 Mannheim +49-(0)621-1581-451 | http://www.ids-mannheim.de -------------- next part -------------- diff -u -r nut-2.6.4.orig/clients/upssched.c nut-2.6.4/clients/upssched.c --- nut-2.6.4.orig/clients/upssched.c 2012-05-11 10:29:33....
2006 Mar 31
1
andersen plot vs score process or scaled Schoenfeld residuals to test for proporti0nal hazards
Dear all, I use the Andersen plot to check for proportional hazards assumption for a factor (say x) in the Cox regression model and obtained a straight line that pass through the origin. However, the formal test done by the R-function cox.zph, which is based on the plot of Schonefeld residuals against time, indicates that proportional hazards assumption is violated. Further, a plot of the score process (cumulative sums of schoenfeld residuals) against time again give the same conclusion as the cox.zph function and i am really stumped by this. Klein et al (1997, pp 354) mentione...