Re: How to remove an artifact from a plot

• To: mathgroup at smc.vnet.net
• Subject: [mg81931] Re: [mg81896] How to remove an artifact from a plot
• Date: Sun, 7 Oct 2007 05:27:08 -0400 (EDT)
• References: <200710060836.EAA25189@smc.vnet.net>

```Dear John,

the horizontal line is the x-axis; use the option Axes->False to plot your
data:

Test = Table[{x, (1/
2) + (Cos[2*2*Pi*x]/
2)*(E^-(x^2) + (1/2)*0.1*E^-((x - 12)^2) + (1/2)*0.05*
E^-((x - 27)^2) + (10^-3)*E^-((x - 280)^2))}, {x, -10, 40,
0.05}];

ListPlot[Test, PlotRange -> All, Joined -> True, Frame -> True,
FrameLabel -> {"Pathlength Mismatch (2\[CenterDot]m mm)", " Signal
Strength "},
BaseStyle -> {FontFamily -> "Garamond", FontSlant -> "Italic",
FontSize -> 14}, Axes -> False]

Ricardo

On 10/6/07, john.feth at honeywell.com <john.feth at honeywell.com> wrote:
>
> I'm using Mathematica 6.0 and when I use the following notebook entry
>
> Test=Table[{x,(1/2)+(Cos[2*2*Pi*x]/2)*(E^-(x^2)+(1/2)*0.1*E^-
> ((x-12)^2)+(1/2)*0.05*E^-((x-27)^2)+(10^-3)*E^-((x-280)^2))},
> {x,-10,40,0.05}];ListPlot[Test,PlotRange->All,Joined->True,Frame-
> >True,FrameLabel->{"Pathlength Mismatch (2\[CenterDot]m mm)"," Signal
> Strength "},BaseStyle->{FontFamily->"Garamond",FontSlant-
> >"Italic",FontSize->14}]
>
> in addtion to the plot I want, I get a horizontal line across the
> whole plot at 0.2.  This sort of artifact also appears occasionally in
> Mathematica 5.1.
>
> Does anyone know why it appears?
>
> Does anyone know how to get rid of it?
>
> Thanks very much,
>
> John Feth
>
>
>

--
____________________________________

tel: (+55 11) 3133-9372
fax: (+55 11) 3133-9374

Centro de Lasers e Aplica=E7=F5es
IPEN/CNEN-SP
AV. Prof. Lineu Prestes 2242