#--------code-----------------
ve <- NULL
for(i in 1:20) {
if(i%%2==0) {
ve[i] <- print(i)
}
}
ve
#--------------------result----------------
ve
[1] NA 2 NA 4 NA 6 NA 8 NA 10 NA 12 NA 14 NA 16 NA 18 NA 20
Q: How can I store only extracts from the for statement in an object called ve?
ex) >ve
[1] 2 4 6 8 10 12 14 16 18 20