[R] retrieve p-value from a cox.obj

[clearsky]

I tried obj$p, obj$pvalue, but they both returned null~~


clearsky wrote:
> 
> I have a cox.obj named obj, 
> obj <- coxph( Surv(time, status) ~ group, surv.data)
> now I want to retrieve the p-value from obj, so that I can run this
> hundreds of times and plot out the distribution of the p-value. could
> anyone tell me how to get p-value from obj?
> 
> thanks,
> 
> 

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