[PyX-user] Plotting Piecewise Functions

[Dan R. <xa...@ya...>]

Hopefully I won't become a nuisance in my quest to
become adept with PyX. : )

My question this time is what is the preferred method
to plot a piecewise function? 

For instance, the function I want to plot at the
moment is:

$$
f(x) = \left\{ 
\begin{array}{ll}
x & 0 \leq x < 1 \\
0 & x = 1 \\
1 & 1 < x \leq 2 \\
3 - x & 2 < x < 3 \\
1 & 3 \leq x \leq 4, x \neq 3.5 \\
2 & x = 3.5 \\
\end{array}\right.
$$

but a much simpler example/explanation would be more
than enough for me.

Thanks again,
-Daniel