[pstricks] draw the bell-shaped

vbzdf.11wo vbzdf.11wo at gmx.net
Mon Mar 12 16:00:59 CET 2007

On Monday 12 March 2007, Vo Duc Hoang Vu wrote:
> Could you help me using pstricks to draw a bell-shaped curve with filling
> two tails as the picture below?
>
> http://img221.imageshack.us/img221/3385/hamsoxacsuatfm3.jpg
>
> Thank you.
>
> Vu Vo

Funny thing I did just that a week ago. I hope this snippet helps you out.

Needed are the packages pstricks-add and pst-plot.

Alex

\begin{pspicture}(8.5cm, 3.5cm)
\psset{xunit=10mm, yunit=60mm}
\psplot[linecolor=gray, plotstyle=curve]{1}{7}{x 4 1 GAUSS}
\pscustom[linecolor=gray, plotstyle=curve, fillstyle=hlines,
hatchcolor=gray]{
\psline(5.4,0)(5.4,0)
\psplot[liftpen=1]{5.4}{7}{x 4 1 GAUSS}
}
\psaxes[labels=none, ticks=x, ticksize=-1mm]{->}(4,0)(0,0)
(8,.5)
\uput[0]{0}(8,0){$t$}
\uput[180]{0}(4,.5){$\frac{1}{\sqrt{2\pi}} \mathrm{e}^{-\frac{t^2}{2}}$}
\uput[270]{0}(5.4,0){$x$}
\uput[270]{0}(4,0){$0$}
\uput[270]{0}(5,0){$1$}
\uput[270]{0}(3,0){$-1$}
\end{pspicture}