Clinicopath survival

[rabouqal]

Hello Dr Balci,

Thanks for the survival module. is it possible to add the proportional hazards assumption check in the Cox model for example with a schoenfel residuals graph.

thanks again

[sbalci]

Hi,

Would you please guide me to a literature or R-code for your request.

Thank you

Serdar Balci

[MAgojam]

Hey Serdar,
you already import R package survival and surminer.

Look in surminer the function:
ggcoxzph(): Graphical test of proportional hazards. Displays a graph of the scaled Schoenfeld residuals, along with a smooth curve using ggplot2. Wrapper around plot.cox.zph().

Also take a look at the screenshot with a few lines of code in the Rj editor.

ScreenShot_20230513180541.jpeg (365.39 KiB) Viewed 32685 times

Cheers,
Maurizio

[rabouqal]

Hello Dr Balci,
In survminer used by jsurvival :

Diagnostics of Cox Model :


ggcoxzph(): Graphical test of proportional hazards. Displays a graph of the scaled Schoenfeld residuals, along with a smooth curve using ggplot2. Wrapper around
plot.cox.zph().

ggcoxdiagnostics(): Displays diagnostics graphs presenting goodness of Cox Proportional Hazards Model fit.

ggcoxfunctional(): Displays graphs of continuous explanatory variable against martingale residuals of null cox proportional hazards model. It helps to properly choose the functional form of continuous variable in cox model.

Thank

[sbalci]

Thank you.
So they seem to be easily implementable.
I will work on them

[rabouqal]

Thank you Dr Balci

[sbalci]

https://github.com/sbalci/jsurvival/issues/3

[rabouqal]

Hello Dr Balci,

something new for the proportional hazards assumption check in the Cox model?
https://github.com/sbalci/jsurvival/issues/3

Thank

[sbalci]

I am working on it, the functions are being rewritten due to some bugs.
The modules will be updated in upcoming weeks.