```R
par(mfrow=c(2,1))
plot(cmort, type="p", ylab="mortality", main="nearest neighbor")
lines(supsmu(time(cmort), cmort, span=.5))
lines(supsmu(time(cmort), cmort, span=.01))
plot(cmort, type="p", ylab="mortality", main="lowess")
lines(lowess(cmort, f=.02))
lines(lowess(cmort, f=2/3))
```

University of Michigan - Ann Arbor

You can write R code in a code node. For this purpose, you should enter your code in triple backthicks. You should proceed the beginning backticks with an "R". For example,
```R
n = c(2, 3, 5)
s = c("aa", "bb", "cc") 
b = c(TRUE, FALSE, TRUE)
df = data.frame(n, s, b) # df is a data frame
``` 

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