In the call to the function 'fr1', the argument 'x' comes in as a vector and
you get a vector result. Here is what it looks like:
> fr2(seq(0,1,.1))
[1] 1.00 1.31 1.64 1.99 2.36 2.75 3.16 3.59 4.04 4.51 5.00
because fr2 is sending a vector of length 10 to fr1 which will return a
vector of lengt
I tried to define a function using another function I defined before, and the
previous function has a vector as an argument, when I tried to get the graph
of the new function, there was something going wrong. Here is a simple
example to explain how it happend:
fr1 <- function(x,y){
x^2+x*y+1
}
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