define independant data set

[Charles Seman]

Bernd,

One idea is to try ftp://grads.iges.org/grads/examples/xyplot.gs
which does a plot of "y" vs. "x"

Chuck

Bernd Becker wrote:
> Hello,
>
> this is an odd question:
>
> can one define a data set in grads independent from any external data
> set?
>
> How do you:
>
> define x='1 2 3 4 5 6 7 8 9'
> define y=x*x
>
> d y
>
> and get an y ver. x  line plot ?
>
>
> The background:
>
> I compiled event statistics by mask and const,
> count some numbers at individual grid points,
> constructed a curve, or at least the vector for it
> and now I want to plot it.
>
> I can draw a line, scaling the numbers to the plot window.
> That looks really bland.
> I also like to get appropriate axis and other nice bits.
>
> Any ideas how to do that?
>
> t = 0
> sum = 1
> scalex  =  6.5/32.
> scaley  =  5.5/1.
> xstr=''
> ystr=''
> linestr=''
> while ( t <= 32       )
>     xstr= xstr ' '     t ' '
>     ystr= ystr ' ' cdf.t ' '
>
>     xx  = 1 + t* scalex
>     yy  = 1 + cdf.t* scaley
>     linestr= linestr' ' xx ', ' yy   ', '
>
>     t = t + 1
> endwhile
>
> * plot cdf
>
> say         linestr
> 'draw line 'linestr
>
> cdf.t are numbers [ 1, 0 ] over 32 steps.
>
> --
> Bernd Becker   The Monthly Outlook
> Met Office  FitzRoy Road  Exeter   Devon EX1 3PB  United Kingdom
> Tel.: +44 (0) 1392 884511 Fax: +44 (0)870 900 5050
> E-mail:bernd.becker at metoffice.com  -  http://www.metoffice.com
>

--

Please note that Charles.Seman at noaa.gov should be considered my NOAA
email address, not cjs at gfdl.noaa.gov.

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