ggsurvplot is it possible to start graph at (0,0)

Question

I would like to have the axis crossing at 0,0 in ggsurvplot. There is a similar older question here ggsurvplot - axes crossing at 0,0. However, I am having errors with this method.

First error due to adding confidence intervals conf.int = T:

Error in ggpubr::geom_exec(.geom_confint, data = d, ymin = "lower", ymax = "upper", : object '.geom_confint' not found

Second error occurs when adding median survival lines surv.median.line = "hv":

Error in .add_surv_median(p, fit, type = surv.median.line, fun = fun, : could not find function ".add_surv_median"

Is there another way to solve this?

ggsurvplot(fit, data = lung)

Thanks in forward

Answer 1

If I understand you right then you could achieve your desired result by removing the default expansion via scale_x/y_continuous like so:

library(survminer)
library(survival)

fit<- survfit(Surv(time, status) ~ sex, data = lung)

p <- ggsurvplot(fit, data = lung)

p$plot <- p$plot + 
  scale_x_continuous(expand = c(0, 0, .05, 0)) +
  scale_y_continuous(expand = c(0, 0, .05, 0))

p