1# S1 2 3```{r xyX} 4 5x <- 1 6foo <- function () { 7 y <- 2 8 return(y) 9} 10 11X <- func() 12 13``` 14 15# S2 16 17```{r, cache = TRUE, dependson = "xyX"} 18mean(X) 19``` 20 21```{python} 22def f(): 23 g() 24 return 3 25``` 26# S3 27 28