I am new to R and have a few questions about vectors.
I need help creating a vector n containing two copies of vector x, separated by a 0.
I wrote the following code, but missing the ´0´part:
x<-c(3,10,30)
n=rep(x, times=2)
n
In addition, how to check if the content of two vectors is equal? And finally, how do I check for the length of a vector?
1c: If you just need a 0 between two vectors, you can use the c() function to combine multiple objects together. In this case, we can make two copies of x with a 0 in-between them like so - c(x,0,x)
2: R lets you check whether two things are equal in multiple ways. It sounds like your professor wants you to use the == approach, which checks if each element of two things are the same. As the next question notes though, doing that when they aren't the same length is possibly problematic - which element is the start, etc. Just something to be aware of. You can use if two things are identical though with identical()
3: There is a function you can use for this. length() tells you how many elements are in an object. Just for fun, we can the == approach here to see if the lengths are equal (we know that R should tell use FALSE of course)
x<-c(3,10,30)
x
m=rep(x, each=2)
m
n=rep(x, times=2)
n
# question 1c
n <- c(x, 0, x)
n
# Question 2: Is the content of m equal to the content of n?
n == m
# Question 3: How can you check the length of both vectors?
length(n)
length(m)
length(n) == length(m)