# load packages

library$($bench$)$

# initialize variables

x $<-1$:$100$

z $<-1\mathrm{.}6$

# approach I: loop

multiplication $<-$

function$($x$,$z$)\{$

result $<-$ c$()$

for $($i in $1$:length$($x$))\{$result $<-$ c$($result$,$ x$[$i$]*$z$)\}$

return$($result$)$

$\}$

result $<-$ multiplication$($x$,$z$)$

head$($result$)$

# approach II: $"$R$-$style"

result$2<-$ x $*$ z

head$($result$2)$

# comparison

benchmarking $<-$

mark$($

result $<-$ multiplication$($x$,$z$),$

result$2<-$ x $*$ z$,$

min$\_$iterations $=100$

$)$

benchmarking$[,4$:$9]$

plot$($benchmarking$,$ type $=$ "boxplot"$)$

Compare the several different implementations of a code chunk both regarding timing and memory usage.