[pstricks] pstricks-add

[Herbert Voss]

Alan Ristow wrote:

> It looks like \psgraph might be able to be modified to perform the
> scaling *and* fake the axis labels so the data files don't have to be
> altered. I plan to have a closer look at it this evening, but I thought
> I'd ask for comments first -- any better ideas about how I should (or
> should not) handle this?

I suppose that this new \psgraph needs some time to understand
how it works. It has, from my point of view, a major disadvantage:
too many parameters ...

An important  macro is \pstScalePoints, e.g.
   \pstScalePoints(1,1){1989 sub}{2 sub}

(1,1)     : all x|y Values are not scaled
{1989 sub}: from every x data record 1989 is substracted
{2 sub}   : from every y data record 2 is substracted

There is now no need for setting the units, this is
done internally by psgraph.

have a look at the examples, I suppose that they show
what you want.

Herbert





\begin{filecontents}{cost.d}
   1989 3.08
   1990 3.84
   1991 4.08
   1992 3.21
   1993 5.23
   1994 2.97
   1995 2.53
   1996 2.8
   1997 2.78
   1998 3.15
   1999 2.32
   2000 2.4
   2001 2.46
\end{filecontents}

\documentclass{article}
\usepackage{pstricks}
\usepackage{pstricks-add}

\begin{document}
   \readdata{\data}{cost.d}%
   \pstScalePoints(1,1){1989 sub}{}
   \psset{xAxesLabel=Year,yAxesLabel=Whatever,%
      xAxesLabelPos={2in,-0.4in},yAxesLabelPos={-0.4in,1in}}
%
   \psgraph[axesstyle=frame,Ox=1989][linecolor=red,linewidth=2pt]{\data}%
     (0,12)(0,6){1}{1}{4in}{2in}%

\vspace{2cm}
   \pstScalePoints(1,1){1989 sub}{2 sub}
 
\psgraph[axesstyle=frame,Ox=1989,Oy=2][linecolor=red,linewidth=2pt]{\data}%
     (0,12)(0,4){1}{1}{4in}{2in}%

\end{document}




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