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MathGroup Archive 2000

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Re: LogLogPlot with dezibel/decible(?)

  • To: mathgroup at smc.vnet.net
  • Subject: [mg22219] Re: LogLogPlot with dezibel/decible(?)
  • From: John Doty <jpd at w-d.org>
  • Date: Fri, 18 Feb 2000 02:35:01 -0500 (EST)
  • Organization: The Internet Access Company, Inc.
  • References: <88g4ig$4ct@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hans Friedrich Steffani wrote:
> 
> I need a LogLogPlot with dezibel (or is it decible?) at the vertical
> axis. This means, that the ticklabels should be substitute by
> 20 Log[n].

Compute decibels explicitly and do a LogLinearPlot:

dBfromAmplitude[amplitude_, reference_] := 
  20*Log[10,Abs[amplitude/reference]]

LogLinearPlot[dBfromAmplitude[yourFunction,yourReferenceLevel],yourVariableRange]


-- 
John Doty		"You can't confuse me, that's my job."
Home: jpd at w-d.org
Work: jpd at space.mit.edu


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