[R] Is variable in one vector part of variable in another

[darthgervais]

I have 2 vectors x & z
x  has 10 variables in it
z has 75 variable in it

I need to check all 75 variables in z and see if they are present in the
vector x.
So far this is what I have:

for (i in 0:75){
if (z[i]==x) (w=w+1)
}

Thanks in advance
w
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