Re: [R] change the reference level in plot(summary(cph-fit))

On Jan 4, 2014, at 8:37 PM, zhu yao wrote: > I have use the plot(summary(cph-fit)) to plot the hazard ratio plot. > *Can I change the reference level in the plot, for example, use [1999, > 2002) as the reference level?* I do not think we have enough information to be sure what you mean, but I wo

[R] change the reference level in plot(summary(cph-fit))

I have use the plot(summary(cph-fit)) to plot the hazard ratio plot. *Can I change the reference level in the plot, for example, use [1999, 2002) as the reference level?* *Thanks* *Yao Zhu* *Department of Urology Fudan University Shanghai Cancer CenterShanghai, China* [[alternative HTM