Hello everybody,
I don't understand what I'm doing wrong. But it isn't possible that each
element of the if-condition is tested for each vector element?
y <- c(1:20)
> y
[1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
> if (y == c(4,5,9,11,17)) { print("yes") } else { print("no")}
[1] "no"
warning:
In if (y == c(4, 5, 9, 11, 17)) { :
Condition has length > 1 and only the first element is used
>
#It also doesn't work with this condition ==2
if (y == 2) { print("yes") } else { print("no")}
[1] "no"
warning:
In if (y == 2) { :
Condition has length> 1 and only the first element is used
I guess it's a trivial problem. I hope someone can help me.
Thank you!
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