Why is this $R$ code

a$\_$vector :$1000$

another$\_$vector a$\_$vector $+1$

preferable to this $R$ code?

a$\_$vector :$1000$

another$\_$vector a$\_$vector

for$($i in another$\_$vector$)\{$

another$\_$vector

$\}$

The second example's code will give the wrong answer.

The second example's code will cause an error.

It is faster.

It is shorter.