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Question 7 Create an R function \texttt{pwfun()}, which computes values of the piece-wise (mathematical) function \texttt{pwfun} defined in the following way: Its graph is as follows. $$\text{pwfun}(x) = \begin{cases} -2x - 2, & x < -1\\ 0, & -1 \le x \le 1\\ x^2 - 1, & 1 < x \end{cases}$$ Your R function \texttt{pwfun()} should also accept \texttt{x} as a vector of arbitrary length and return vector of the same length with entries defined as values of the mathematical function \texttt{pwfun}, evaluated at the corresponding entries of vector \texttt{x}. Here are some input vectors and what you should get as a corresponding output. \texttt{pwfun}(-1) 0 \texttt{pwfun}(c(-2, 0.5, 3)) 2 0 8 x = c(-3, -2, -1, 0, 1, 2, 3.2) \texttt{pwfun}(x) 4 2 0 0 0 3 9.24

          Question 7
Create an R function \texttt{pwfun()}, which computes values of the piece-wise (mathematical) function \texttt{pwfun} defined in the following way:
Its graph is as follows.
$$\text{pwfun}(x) = \begin{cases} -2x - 2, & x < -1\\ 0, & -1 \le x \le 1\\ x^2 - 1, & 1 < x \end{cases}$$
Your R function \texttt{pwfun()} should also accept \texttt{x} as a vector of arbitrary length and return vector of the same length with entries defined as values of the
mathematical function \texttt{pwfun}, evaluated at the corresponding entries of vector \texttt{x}.
Here are some input vectors and what you should get as a corresponding output.
\texttt{pwfun}(-1)
0
\texttt{pwfun}(c(-2, 0.5, 3))
2 0 8
x = c(-3, -2, -1, 0, 1, 2, 3.2)
\texttt{pwfun}(x)
4 2 0 0 0 3 9.24

Question 7
Create an R function pwfun(), which computes values of the piece-wise (mathematical) function pwfun defined in the following way:
Its graph is as follows.

pwfun(x) = -2x - 2, x < -1
0, -1 ≤ x ≤ 1
x^2 - 1, 1 < x

Your R function pwfun() should also accept x as a vector of arbitrary length and return vector of the same length with entries defined as values of the
mathematical function pwfun, evaluated at the corresponding entries of vector x.
Here are some input vectors and what you should get as a corresponding output.
pwfun(-1)
0
pwfun(c(-2, 0.5, 3))
2 0 8
x = c(-3, -2, -1, 0, 1, 2, 3.2)
pwfun(x)
4 2 0 0 0 3 9.24

Added by Lisa P.

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