This line would give me the following error.

[enochytchen]

rstpm2/man/markov_msm.Rd

Line 385 in f511b00

plot(pred1, ggplot=TRUE) + facet_grid(Nodes ~ Size) + xlab("Years since surgery")

Error in limits.and.aspect(default.prepanel, prepanel = prepanel, have.xlim = have.xlim, :
need at least one panel
In addition: Warning message:
In plot.markov_msm(pred1, strata = ~nodes + size, xlab = "Years since surgery", :
More than one set of covariates; covariates have been standardised