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## Newbie: Plotting questions

**From**: |
Geoff Wright |

**Subject**: |
Newbie: Plotting questions |

**Date**: |
Fri, 5 Jul 2002 11:51:09 -0400 |

Hi,
I have just started with Octave and was wondering if someone could give me a
hand getting going.
1. I like to write my commands in a script file and then run it. For
example, I create a file named "2dplot.O" and then type "octave 2dplot.O" in
a shell. Is this fairly standard or is there a more efficient way of doing
it? Also, what file extension do people use for these input files?
2. I like to look at 2d and 3d plots of functions that I am working with. I
have this simple file to view a 2d plot.
function y = f(x)
y = x.^2;
endfunction
x = (1:10)
y = f(x)
plot(x,y)
gset term postscript
gset output "2dplot.ps"
replot
Does anyone have a few simple examples of better ways to do this? It's
annoying that x=(1:10) has intervals of 1. I can think of a few ways that
would allow me to decrease that interval but why re-invent the wheel if you
don't have to.
3. Ideally, I would like to be able to just say something like z = f(x,y)
where f(x,y) = x^2 * y^3 and then view a plot of that function over certain
domains. Does anyone have a few examples of how I might do this?
4. I would also like to be able to have the GNUplot pause on the screen and
only write to file after I have viewed it.
Thanks a lot for the help. Sorry about the newbie questions.
Take care,
geoff
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**Newbie: Plotting questions**,
*Geoff Wright* **<=**