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Re: Y limits in fplot
From: |
Henry F. Mollet |
Subject: |
Re: Y limits in fplot |
Date: |
Wed, 01 Aug 2007 15:14:14 -0700 |
User-agent: |
Microsoft-Entourage/11.1.0.040913 |
N.B. Y limits in fplot are working when using
Octave-2.1.71/gnuplot-4.0.
Therefore I don't understand why I have problems when trying the same using
octave-2.9.13/gnuplot-4.2.0.
Similarly, I have difficulties with the default colors, default linewidth,
and no default key when using plot in octave-2.9.13/gnuplot-4.2.0 rather
than Octave-2.1.71/gnuplot-4.0 as per different posting.
Henry
on 8/1/07 10:59 AM, Henry F. Mollet at address@hidden wrote:
> I've tried fplot using Y limits but they had no effect. I had tried "tan"
> and needed to set Y limits. I assume that fplot needs to set the axis when
> the Y limits are to be set also. When using X limits only are used, then the
> the X limits are set by
> x = linspace (limits(1), limits(2), n)';
> in the code of fplot and there is no need to set the axis?
> Henry
>
> octave-2.9.13:2> fplot ("cos", [0, 2*pi])
> octave-2.9.13:3> fplot ("cos", [0, 2*pi, -2, 2])
> # Y limits had no effect
>
> octave-2.9.13:4> figure(2)
> octave-2.9.13:5> x = linspace (0,2*pi,200);
> octave-2.9.13:6> plot (x, cos(x))
> octave-2.9.13:7> axis ([0, 2*pi, -2, 2])
> # Y limits worked as expected
>
> octave-2.9.13:8> help fplot
> -- Function File: fplot (FN, LIMITS)
> -- Function File: fplot (FN, LIMITS, TOL)
> -- Function File: fplot (FN, LIMITS, N)
> -- Function File: fplot (..., LINESPEC)
> Plot a function FN, within the defined limits. FN an be either a
> string, a function handle or an inline function. The limits of
> the plot are given by LIMITS of the form `[XLO, XHI]' or `[XLO,
> XHI, YLO, YHI]'. TOL is the default tolerance to use for the plot,
> and if TOL is an integer it is assumed that it defines the number
> points to use in the plot. The LINESPEC is passed to the plot
> command.
>
> fplot ("cos", [0, 2*pi])
> fplot ("[cos(x), sin(x)]", [0, 2*pi])
>
>
> See also: plot.
>
> /Applications/Octave.app/Contents/Resources/share/octave/2.9.13/m/plot/fplot
> .m
>
>
>
> _______________________________________________
> Help-octave mailing list
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> https://www.cae.wisc.edu/mailman/listinfo/help-octave
- Y limits in fplot, Henry F. Mollet, 2007/08/01
- Re: Y limits in fplot,
Henry F. Mollet <=