We assumed that the hazard ratio was a constant over time for each variable as there was no indication to the contrary when we checked "log-log" plots (in which log(−log(S t)) is plotted against time, where S t) is the probability of not having the event up until at least time t).
Engineers quickly reach the limits of human ability to track information, to the point that checking logs and analytics becomes impractical and unwieldy on a system running thousands of services.
Users can check logs of who has entered specific doors and assign temporary access.
Los Angeles has required dealers to log ammunition sales since 1998, and police there say they check logs regularly.
The proportional hazards assumption was checked using log minus log plots.
The proportional hazard assumption for each of the selected variables retained in the final model was originally checked by log minus log plots baseline hazard ratio.
Last year, he started a website named Did Rami Get Random Checked, logging all the times he was marked for extra security attention.
Just get into the habit of going through a list in your head of "log in, do not check stay logged in, log out" when using public access devices.
The proportional hazard assumption was checked by log (-log) plots from stratified analyses.
