Schoenfeld plots every time event to test the proportional hazard assumption. A straight line passing through a residual value of 0 with gradient 0 indicates that the variable satisfies the PH assumption and therefore does not depend on time. Considering this, why the variable in image has a result that failed the non-proportional test: p-value is
Biche Osong
Hi, Pedro Sobreiro I am sure you might have gotten a response to your question already. However, I think the key here is the non-random pattern which in the plots you show there is clearly a mega phone-like structure.
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